Browse by UCL people
Group by: Type | Date
Number of items: 234.
2026
Lancaster, Tara;
Tut, Gokhan;
Sylla, Panagiota;
Bone, David;
Bentley, Christopher;
Spalkova, Eliska;
Jadir, Azar;
... Moss, Paul; + view all
(2026)
Endemic penetrance of SARS-CoV-2 has impacted marginally on immunity to spike protein of human coronaviruses.
Communications Biology
10.1038/s42003-025-09474-x.
(In press).
|
 |
2025
|
Bi, Dongquan;
Copas, Andrew;
Li, Fan;
Kahan, Brennan C;
(2025)
A scoping review identified additional considerations for defining estimands in cluster randomised trials.
Journal of Clinical Epidemiology
, Article 112015. 10.1016/j.jclinepi.2025.112015.
(In press).
|
 |
|
Fottrell, Edward;
Kuddus, Abdul;
Morrison, Joanna;
Nahar, Tasmin;
King, Carina;
Shaha, Sanjit Kumer;
Pires, Malini;
... Azad, Kishwar; + view all
(2025)
A cluster randomised controlled trial of community groups using Participatory Learning and Action to prevent and control diabetes and intermediate hyperglycaemia in rural Bangladesh.
PLOS Global Public Health
, 5
(8)
, Article e0005049. 10.1371/journal.pgph.0005049.
|
|
|
Hemming, K;
Hall, J;
Copas, A;
Watson, S;
Taljaard, M;
Hooper, R;
(2025)
Covariate adjustment in cluster randomised trials: a practical guide.
BMJ
, 391
, Article e084194. 10.1136/bmj-2025-084194.
|
|
|
Hemming, Karla;
Thompson, Jacqueline Y;
Hooper, Richard L;
Ukoumunne, Obioha C;
Li, Fan;
Caille, Agnes;
Kahan, Brennan C;
... Taljaard, Monica; + view all
(2025)
Guidelines for the content of statistical analysis plans in clinical trials: protocol for an extension to cluster randomized trials.
Trials
, 26
(1)
, Article 72. 10.1186/s13063-025-08756-3.
|
|
|
Howarth, A;
Harb, A;
Mohammed, H;
Burns, F;
Estcourt, C;
Bloch, SCM;
Copas, A;
... Gibbs, J; + view all
(2025)
Uptake, positivity, and equity of online postal self-sampling for chlamydia testing in England: a retrospective cohort study.
The Lancet Regional Health - Europe
, 56
, Article 101412. 10.1016/j.lanepe.2025.101412.
|
|
|
Ismail, Nazir;
Moultrie, Harry;
Mwansa-Kambafwile, Judith;
Copas, Andrew;
Izu, Alane;
Moyo, Sizulu;
Skinner, Donald;
... Madhi, Shabir A; + view all
(2025)
Effects of conditional cash transfers and pre-test and post-test tuberculosis counselling on patient outcomes and loss to follow-up across the continuum of care in South Africa: a randomised controlled trial.
The Lancet Infectious Diseases
10.1016/S1473-3099(24)00816-8.
(In press).
|
|
|
Jarolimova, J;
Busang, J;
Chimbindi, N;
Okesola, N;
Smit, T;
Harling, G;
McGrath, N;
... Sherr, L; + view all
(2025)
Youth-friendly sexual health services and peer support for improved sexual and reproductive health outcomes among adolescents and young adults in South Africa: results of a factorial randomized controlled trial.
Sexually Transmitted Diseases
, 52
(11)
pp. 659-667.
10.1097/OLQ.0000000000002203.
|
|
Jordan, Emily;
Dema, Emily;
Clifton, Soazig;
Copas, Andrew;
Riddell, Julie;
Bosó Pérez, Raquel;
Mercer, Catherine H;
... Sonnenberg, Pam; + view all
(2025)
Sexual behaviours and lifestyles associated with poor mental health among British adults during the early phase of the COVID-19 pandemic: findings from a large, quasirepresentative, cross-sectional web-panel survey (Natsal-COVID).
BMJ Public Health
, 3
(1)
, Article e001443. 10.1136/bmjph-2024-001443.
|
|
|
Mannell, Jenevieve;
Tevaga, Pepe;
Isaako, Papali'i Ene;
Alisi-Fesili, Fa'afetai;
Apelu, Louisa;
Moananu, Kaisarina;
Faumuina, Taiaopo;
... Copas, Andrew; + view all
(2025)
Is exposure to a climate-related disaster associated with recent experiences of intimate partner violence among women? A post hoc analysis of survey data from rural Samoa.
BMJ Public Health
, 3
(1)
, Article e001088. 10.1136/bmjph-2024-001088.
|
|
|
Miall, Naomi;
Aveline, Alice;
Copas, Andrew J;
Bosó Pérez, Raquel;
Baxter, Andrew J;
Riddell, Julie;
Oakley, Laura;
... Willis, Malachi; + view all
(2025)
Longitudinal Assessment of Sexual Behavior and Relationship Quality During the First Year of the COVID-19 Pandemic in Britain: Findings from a Longitudinal Population Survey (Natsal-COVID).
The Journal of Sex Research (JSR)
10.1080/00224499.2024.2432000.
(In press).
|
|
|
Moyo, M;
Ntshiqa, T;
Hamada, Y;
Copas, A;
Sabi, I;
Ntinginya, EN;
Lalashowi, J;
... Minja, LT; + view all
(2025)
Community and Universal Testing for TB among close contacts of microbiologically confirmed pulmonary TB patients in two high TB burden countries: a protocol for a pragmatic cluster-randomised control trial.
Trials
, 26
(1)
, Article 285. 10.1186/s13063-025-08978-5.
|
|
|
Pires, Malini;
King, Carina;
Shaha, Sanjit;
Kuddus, Abdul;
Ahmed, Naveed;
Morrison, Joanna;
Copas, Andrew;
... Fottrell, Edward; + view all
(2025)
The burden of common mental disorders and their association with diabetes in rural Bangladesh: findings from a population-based cross-sectional study.
Journal of Global Health
, 15
, Article 04220. 10.7189/jogh.15.04220.
|
|
2024
|
Asrat, Daniel;
Copas, Andrew;
Olubukola, Adesina;
(2024)
Exploring the association between unintended pregnancies and unmet contraceptive needs among Ugandan women of reproductive age: an analysis of the 2016 Uganda demographic and health survey.
BMC Pregnancy and Childbirth
, 24
, Article 117. 10.1186/s12884-023-06222-z.
|
|
Billot, Laurent;
Copas, Andrew;
Leyrat, Clemence;
Forbes, Andrew;
Turner, Elizabeth L;
(2024)
How should a cluster randomized trial be analyzed?
Journal of Epidemiology and Population Health
, 72
(1)
, Article 202196. 10.1016/j.jeph.2024.202196.
|
|
Burman, M;
Zenner, D;
Copas, AJ;
Goscé, L;
Haghparast-Bidgoli, H;
White, PJ;
Hickson, V;
... Kunst, H; + view all
(2024)
Treatment of latent tuberculosis infection in migrants in primary care versus secondary care.
The European respiratory journal
, 64
(5)
, Article 2301733. 10.1183/13993003.01733-2023.
|
|
|
Estcourt, Claudia S;
Mapp, Fiona;
Woode Owusu, Melvina;
Low, Nicola;
Flowers, Paul;
Copas, Andrew;
Roberts, Tracy E;
... Cassell, Jackie A; + view all
(2024)
Improving sexual health through partner notification: the LUSTRUM mixed-methods research Programme including RCT of accelerated partner therapy.
Programme Grants for Applied Research
, 12
(2)
pp. 1-96.
10.3310/trqw3886.
|
|
Hamada, Yohhei;
Quartagno, Matteo;
Law, Irwin;
Malik, Farihah;
Bonsu, Frank Adae;
Adetifa, Ifedayo MO;
Adusi-Poku, Yaw;
... Rangaka, Molebogeng X; + view all
(2024)
Tobacco smoking clusters in households affected by tuberculosis in an individual participant data meta-analysis of national tuberculosis prevalence surveys: Time for household-wide interventions?
PLOS Global Public Health
, 4
(2)
, Article e0002596. 10.1371/journal.pgph.0002596.
|
|
Hamada, Yohhei;
Quartagno, Matteo;
Malik, Farihah;
Ntshamane, Keolebogile;
Tisler, Anna;
Gaikwad, Sanjay;
Acuna-Villaorduna, Carlos;
... Rangaka, Molebogeng X; + view all
(2024)
Prevalence of non-communicable diseases among household contacts of people with tuberculosis: A systematic review and individual participant data meta-analysis.
Tropical Medicine & International Health
10.1111/tmi.14038.
(In press).
|
|
Hemming, Karla;
Copas, Andrew;
Forbes, Andrew;
Kasza, Jessica;
(2024)
What type of cluster randomized trial for which setting?
Journal of Epidemiology and Population Health
, 72
(1)
, Article 202195. 10.1016/j.jeph.2024.202195.
|
|
Hemming, Karla;
Thompson, Jacqueline Y;
Taljaard, Monica;
Watson, Samuel I;
Kasza, Jessica;
Thompson, Jennifer A;
Kahan, Brennan C;
(2024)
Re-analysis of data from cluster randomised trials to explore the impact of model choice on estimates of odds ratios: study protocol.
Trials
, 25
(1)
, Article 818. 10.1186/s13063-024-08653-1.
|
|
|
Kahan, Brennan C;
Blette, Bryan S;
Harhay, Michael O;
Halpern, Scott D;
Jairath, Vipul;
Copas, Andrew;
Li, Fan;
(2024)
Demystifying estimands in cluster-randomised trials.
Statistical Methods in Medical Research
10.1177/09622802241254197.
(In press).
|
|
Marquez, Nuria Gallego;
Howarth, Alison R;
Dema, Emily;
Burns, Fiona;
Copas, Andrew J;
Mercer, Catherine H;
Sonnenberg, Pam;
... Gibbs, Jo; + view all
(2024)
Who accessed STI testing in Britain during the COVID-19 pandemic and how: Findings from Natsal-COVID, a cross-sectional quasi-representative survey.
International Journal of STD & AIDS
10.1177/09564624241277582.
(In press).
|
|
Mthiyane, Nondumiso;
Shahmanesh, Maryam;
Copas, Andrew;
Chimbindi, Natsayi;
Dreyer, Jaco;
Zuma, Thembelihle;
McGrath, Nuala;
... Harling, Guy; + view all
(2024)
Uptake of multi-level HIV interventions and HIV-related behaviours among young people in rural South Africa.
PLOS Glob Public Health
, 4
(5)
, Article e0003258. 10.1371/journal.pgph.0003258.
|
|
|
Patel, S;
Gill, M;
Hayward, A;
Hopkins, S;
Copas, A;
Shallcross, L;
(2024)
Comparing indicators of disease severity among patients presenting to hospital for urinary tract infections before and during the COVID-19 pandemic.
JAC - Antimicrobial Resistance
, 6
(2)
, Article dlae067. 10.1093/jacamr/dlae067.
|
|
|
Saville, Naomi M;
Bhattarai, Sanju;
Giri, Santosh;
Sapkota, Suprich;
Morrison, Joanna;
Thapaliya, Bibhu;
Bhattarai, Basudev;
... Hillman, Sara L; + view all
(2024)
Impact of a virtual antenatal intervention for improved diet and iron intake in Kapilvastu district, Nepal - the VALID randomized controlled trial.
Frontiers in Nutrition
, 11
, Article 1464967. 10.3389/fnut.2024.1464967.
|
|
|
Shahmanesh, Maryam;
Chimbindi, Natsayi;
Busang, Jacob;
Chidumwa, Glory;
Mthiyani, Nondumiso;
Herbst, Carina;
Okesola, Nonhlanhla;
... Baisley, Kathy; + view all
(2024)
Effectiveness of integrating HIV prevention within sexual reproductive health services with or without peer support among adolescents and young adults in rural KwaZuluNatal, South Africa (Isisekelo Sempilo): 2 x 2 factorial, openlabel, randomised controlled trial.
The Lancet HIV
, 11
(7)
e449-e460.
10.1016/S2352-3018(24)00119-X.
|
|
|
Stirrup, Oliver;
Krutikov, Maria;
Azmi, Borscha;
Monakhov, Igor;
Hayward, Andrew;
Copas, Andrew;
Shallcross, Laura;
(2024)
COVID-19 related mortality and hospital admissions in the VIVALDI study cohort: October 2020-March 2023.
Journal of Hospital Infection
, 143
pp. 105-112.
10.1016/j.jhin.2023.10.021.
|
|
Tweed, Conor D;
Quartagno, Matteo;
Clements, Michelle N;
Turner, Rebecca M;
Nunn, Andrew J;
Dunn, David T;
White, Ian R;
(2024)
Exploring different objectives in non-inferiority trials.
BMJ
, 385
, Article e078000. 10.1136/bmj-2023-078000.
|
|
Winsloe, C;
Elhindi, J;
Vieira, MC;
Relph, S;
Arcus, CG;
Coxon, K;
Briley, A;
... Pasupathy, D; + view all
(2024)
Perinatal outcomes after selective third-trimester ultrasound screening for small-for-gestational age: prospective cohort study nested within DESiGN randomized controlled trial.
Ultrasound in Obstetrics & Gynecology
10.1002/uog.29130.
(In press).
|
|
|
Winsloe, Chivon;
Elhindi, James;
Vieira, Matias C;
Relph, Sophie;
Arcus, Charles G;
Alagna, Alessandro;
Briley, Annette;
... DESiGN Trial, team; + view all
(2024)
Differences in Factors Associated With Preterm and Term Stillbirth: A Secondary Cohort Analysis of the DESiGN Trial.
BJOG: An International Journal of Obstetrics & Gynaecology
, 132
(1)
pp. 89-98.
10.1111/1471-0528.17951.
|
|
2023
|
Adams, Natalie;
Stirrup, Oliver;
Blackstone, James;
Krutikov, Maria;
Cassell, Jackie A;
Cadar, Dorina;
Henderson, Catherine;
... Shallcross, Laura; + view all
(2023)
Shaping care home COVID-19 testing policy: a protocol for a pragmatic cluster randomised controlled trial of asymptomatic testing compared with standard care in care home staff (VIVALDI-CT).
BMJ Open
, 13
(11)
, Article e076210. 10.1136/bmjopen-2023-076210.
|
|
Baxter, Andrew J;
Geary, Rebecca S;
Dema, Emily;
Bosó Pérez, Raquel;
Riddell, Julie;
Willis, Malachi;
Conolly, Anne;
... Mitchell, Kirsten; + view all
(2023)
Contraceptive use and pregnancy planning in Britain during the first year of the COVID-19 pandemic: findings from a large, quasi-representative survey (Natsal-COVID).
BMJ Sex Reprod Health
10.1136/bmjsrh-2022-201763.
(In press).
|
|
Bhatia, Komal;
Rath, Suchitra;
Pradhan, Hemanta;
Samal, Subhashree;
Copas, Andrew;
Gagrai, Sumitra;
Rath, Shibanand;
... Prost, Audrey; + view all
(2023)
Effects of community youth teams facilitating participatory adolescent groups, youth leadership activities and livelihood promotion to improve school attendance, dietary diversity and mental health among adolescent girls in rural eastern India (JIAH trial): A cluster-randomised controlled trial.
SSM - Population Health
, 21
, Article 101330. 10.1016/j.ssmph.2022.101330.
(In press).
|
|
Bhattarai, Sanju;
Yadav, Samata Kumari;
Thapaliya, Bibhu;
Giri, Santosh;
Bhattarai, Basudev;
Sapkota, Suprich;
Manandhar, Shraddha;
... Morrison, Joanna; + view all
(2023)
Contextual factors affecting the implementation of an anemia focused virtual counseling intervention for pregnant women in plains Nepal: a mixed methods process evaluation.
BMC Public Health
, 23
, Article 1301. 10.1186/s12889-023-16195-5.
|
|
Busang, Jacob;
Zuma, Thembelihle;
Herbst, Carina;
Okesola, Nonhlanhla;
Chimbindi, Natsayi;
Dreyer, Jaco;
Mtshali, Nelisiwe;
... Shahmanesh, Maryam; + view all
(2023)
Thetha Nami ngithethe nawe (Let’s Talk): a stepped-wedge cluster randomised trial of social mobilisation by peer navigators into community-based sexual health and HIV care, including pre-exposure prophylaxis (PrEP), to reduce sexually transmissible HIV amongst young people in rural KwaZulu-Natal, South Africa.
BMC Public Health
, 23
, Article 1553. 10.1186/s12889-023-16262-x.
|
|
Grijalva-Eternod, Carlos S;
Jelle, Mohamed;
Mohamed, Hani;
Waller, Katie;
Osman Hussein, Bishar;
Barasa, Emmanuel;
Solomon, Andrea;
... Seal, Andrew J; + view all
(2023)
Evaluation of conditional cash transfers and mHealth audio messaging in reduction of risk factors for childhood malnutrition in internally displaced persons camps in Somalia: A 2 × 2 factorial cluster-randomised controlled trial.
PLOS Medicine
, 20
(2)
, Article e1004180. 10.1371/journal.pmed.1004180.
|
|
Haghparast-Bidgoli, Hassan;
Ojha, Amit;
Gope, Rajkumar;
Rath, Shibanand;
Pradhan, Hemanta;
Rath, Suchitra;
Kumar, Amit;
... Prost, Audrey; + view all
(2023)
Economic evaluation of participatory women's groups scaled up by the public health system to improve birth outcomes in Jharkhand, eastern India.
PLOS Glob Public Health
, 3
(6)
, Article e0001128. 10.1371/journal.pgph.0001128.
|
|
Hamada, Yohhei;
Quartagno, Matteo;
Law, Irwin;
Malik, Farihah;
Bonsu, Frank Adae;
Adetifa, Ifedayo MO;
Adusi-Poku, Yaw;
... Rangaka, Molebogeng X; + view all
(2023)
Association of diabetes, smoking, and alcohol use with subclinical-to-symptomatic spectrum of tuberculosis in 16 countries: an individual participant data meta-analysis of national tuberculosis prevalence surveys.
eClinicalMedicine
, 63
, Article 102191. 10.1016/j.eclinm.2023.102191.
|
|
Jarolimova, Jana;
Chidumwa, Glory;
Chimbindi, Natsayi;
Okesola, Nonhlanhla;
Dreyer, Jaco;
Smit, Theresa;
Seeley, Janet;
... Isisekelo Research Group; + view all
(2023)
Prevalence of Curable Sexually Transmitted Infections in a Population-Representative Sample of Young Adults in a High HIV Incidence Area in South Africa.
Sexually Transmitted Diseases
, 50
(12)
pp. 796-803.
10.1097/OLQ.0000000000001871.
|
|
|
Kahan, Brennan C;
Li, Fan;
Blette, Bryan;
Jairath, Vipul;
Copas, Andrew;
Harhay, Michael;
(2023)
Informative cluster size in cluster-randomised trials: A case study from the TRIGGER trial.
Clinical Trials
10.1177/17407745231186094.
(In press).
|
|
King, Carina;
Pires, Malini;
Ahmed, Naveed;
Akter, Kohenour;
Kuddus, Abdul;
Copas, Andrew;
Haghparast-Bidgoli, Hassan;
... Fottrell, Edward; + view all
(2023)
Community participatory learning and action cycle groups to reduce type 2 diabetes in Bangladesh (D:Clare): an updated study protocol for a parallel arm cluster randomised controlled trial.
Trials
, 24
, Article 218. 10.1186/s13063-023-07243-x.
|
|
Krutikov, Maria;
Stirrup, Oliver;
Fuller, Chris;
Adams, Natalie;
Azmi, Borscha;
Irwin-Singer, Aidan;
Sethu, Niyathi;
... Shallcross, Laura; + view all
(2023)
Built Environment and SARS-CoV-2 Transmission in Long-Term Care Facilities: Cross-Sectional Survey and Data Linkage.
Journal of the American Medical Directors Association
10.1016/j.jamda.2023.10.027.
(In press).
|
|
Mitchell, Kirstin R;
Willis, Malachi;
Dema, Emily;
Baxter, Andrew J;
Connolly, Anne;
Riddell, Julie;
Bosó Pérez, Raquel;
... Field, Nigel; + view all
(2023)
Sexual and reproductive health in Britain during the first year of the COVID-19 pandemic: cross-sectional population survey (Natsal-COVID-Wave 2) and national surveillance data.
Sexually Transmitted Infections
10.1136/sextrans-2022-055680.
(In press).
|
|
Mthiyane, Nondumiso;
Rapulana, Antony M;
Harling, Guy;
Copas, Andrew;
Shahmanesh, Maryam;
(2023)
Effect of multi-level interventions on mental health outcomes among adolescents in sub-Saharan Africa: a systematic review.
BMJ Open
, 13
(10)
, Article e066586. 10.1136/bmjopen-2022-066586.
|
|
|
Relph, S;
Vieira, MC;
Copas, A;
Alagna, A;
Page, L;
Winsloe, C;
Shennan, A;
... DESiGN, Trial Team and DESiGN Collaborative Group; + view all
(2023)
Characteristics associated with antenatally unidentified small-for-gestational-age fetuses: prospective cohort study nested within the DESiGN randomized control trial.
Ultrasound in Obstetrics & Gynecology
, 61
(3)
pp. 356-366.
10.1002/uog.26091.
|
|
Relph, Sophie;
Vieira, Matias C;
Copas, Andrew;
Winsloe, Chivon;
Coxon, Kirstie;
Alagna, Alessandro;
Briley, Annette;
... DESiGN trial team; + view all
(2023)
Antenatal detection of large-for-gestational-age fetuses following implementation of the Growth Assessment Protocol: secondary analysis of a randomised control trial.
BJOG: An International Journal of Obstetrics and Gynaecology
10.1111/1471-0528.17453.
(In press).
|
|
Sahai, Nikhil;
Arunachalam, Dilesh Kumar;
Morris, Tim;
Copas, Andrew;
Samuel, Prasanna;
Mohan, Venkata Raghava;
Abraham, Vinod;
... John, Jacob; + view all
(2023)
An observer-blinded, cluster randomised trial of a typhoid conjugate vaccine in an urban South Indian cohort.
Trials
, 24
, Article 492. 10.1186/s13063-023-07555-y.
|
|
Saville, Naomi M;
Bhattarai, Sanju;
Harris-Fry, Helen;
Giri, Santosh;
Manandhar, Shraddha;
Morrison, Joanna;
Copas, Andrew;
... Hillman, Sara; + view all
(2023)
Study protocol for a randomised controlled trial of a virtual antenatal intervention for improved diet and iron intake in Kapilvastu district, Nepal: VALID.
BMJ Open
, 13
(2)
, Article e064709. 10.1136/bmjopen-2022-064709.
|
|
South, Annabelle;
Bailey, Julia;
Bierer, Barbara E;
Burnett, Eva;
Cragg, William J;
Diaz-Montana, Carlos;
Gillies, Katie;
... Copas, Andrew J; + view all
(2023)
Site staff perspectives on communicating trial results to participants: Cost and feasibility results from the Show RESPECT cluster randomised, factorial, mixed-methods trial.
Clinical Trials
10.1177/17407745231186088.
(In press).
|
|
Stirrup, Oliver;
Shrotri, Madhumita;
Adams, Natalie L;
Krutikov, Maria;
Azmi, Borscha;
Monakhov, Igor;
Tut, Gokhan;
... Shallcross, Laura; + view all
(2023)
Effectiveness of successive booster vaccine doses against SARS-CoV-2 related mortality in residents of long-term care facilities in the VIVALDI study.
Age Ageing
, 52
(8)
, Article afad141. 10.1093/ageing/afad141.
|
|
Stirrup, Oliver;
Shrotri, Madhumita;
Adams, Natalie L;
Krutikov, Maria;
Nacer-Laidi, Hadjer;
Azmi, Borscha;
Palmer, Tom;
... Shallcross, Laura; + view all
(2023)
Clinical effectiveness of SARS-CoV-2 booster vaccine against Omicron infection in residents and staff of Long-Term Care Facilities: a prospective cohort study (VIVALDI).
Open Forum Infectious Diseases
, 10
(1)
, Article ofac694. 10.1093/ofid/ofac694.
|
|
Willis, M;
Tanton, C;
Conolly, A;
Baxter, AJ;
Pérez, RB;
Riddell, J;
Dema, E;
... Mitchell, KR; + view all
(2023)
Prevalence and Correlates of Fearing a Partner During the COVID-19 Pandemic in Britain: Findings from Natsal-COVID.
Journal of Family Violence
10.1007/s10896-023-00665-w.
(In press).
|
2022
|
Audu, Rosemary A;
Stafford, Kristen A;
Steinhardt, Laura;
Musa, Zaidat A;
Iriemenam, Nnaemeka;
Ilori, Elsie;
Blanco, Natalia;
... Ihekweazu, Chikwe; + view all
(2022)
Seroprevalence of SARS-CoV-2 in four states of Nigeria in October 2020: A population-based household survey.
PLOS Global Public Health
, 2
(6)
, Article e0000363. 10.1371/journal.pgph.0000363.
|
|
Blackstone, James;
Stirrup, Oliver;
Mapp, Fiona;
Panca, Monica;
Copas, Andrew;
Flowers, Paul;
Hockey, Leanne;
... Breuer, Judith; + view all
(2022)
Protocol for the COG-UK hospital-onset COVID-19 infection (HOCI) multicentre interventional clinical study: evaluating the efficacy of rapid genome sequencing of SARS-CoV-2 in limiting the spread of COVID-19 in UK NHS hospitals.
BMJ Open
, 12
(4)
, Article e052514. 10.1136/bmjopen-2021-052514.
|
|
|
Caille, Agnes;
Taljaard, Monica;
Le Vilain-Abraham, Floriane;
Le Moigne, Alexis;
Copas, Andrew J;
Tubach, Florence;
Dechartres, Agnes;
(2022)
Recruitment and implementation challenges were common in stepped-wedge cluster randomized trials: results from a methodological review.
Journal of Clinical Epidemiology
, 148
pp. 93-103.
10.1016/j.jclinepi.2022.04.024.
|
|
Chidumwa, Glory;
Chimbindi, Natsayi;
Herbst, Carina;
Okeselo, Nonhlanhla;
Dreyer, Jaco;
Zuma, Thembelihle;
Smith, Theresa;
... Shahmanesh, Maryam; + view all
(2022)
Isisekelo Sempilo study protocol for the effectiveness of HIV prevention embedded in sexual health with or without peer navigator support (Thetha Nami) to reduce prevalence of transmissible HIV amongst adolescents and young adults in rural KwaZulu-Natal: a 2 × 2 factorial randomised controlled trial.
BMC Public Health
, 22
, Article 454. 10.1186/s12889-022-12796-8.
|
|
|
Clements, Michelle N;
White, Ian R;
Copas, Andrew J;
Cornelius, Victoria;
Cro, Suzie;
Dunn, David T;
Quartagno, Matteo;
... Walker, A Sarah; + view all
(2022)
Improving Clinical Trial Interpretation with ACCEPT Analyses.
NEJM Evidence
, 1
(8)
, Article EVIDctw2200018. 10.1056/evidctw2200018.
|
|
Dema, E;
Gibbs, J;
Clifton, S;
Copas, AJ;
Tanton, C;
Riddell, J;
Pérez, RB;
... Field, N; + view all
(2022)
Initial impacts of the COVID-19 pandemic on sexual and reproductive health service use and unmet need in Britain: findings from a quasi-representative survey (Natsal-COVID).
Lancet Public Health
, 7
(1)
e36-e47.
10.1016/S2468-2667(21)00253-X.
|
|
|
Dema, Emily;
Conolly, Anne;
Willis, Malachi;
Copas, Andrew J;
Clifton, Soazig;
Blake, Margaret;
Riddell, Julie;
... Field, Nigel; + view all
(2022)
Methodology of Natsal-COVID Wave 2: A large, quasi-representative, longitudinal survey measuring the impact of COVID-19 on sexual and reproductive health in Britain [version 1; peer review: awaiting peer review].
Wellcome Open Research
, 7
, Article 166. 10.12688/wellcomeopenres.17850.1.
|
|
Dema, Emily;
Sonnenberg, Pam;
Gibbs, Jo;
Conolly, Anne;
Willis, Malachi;
Riddell, Julie;
Bosó Pérez, Raquel;
... Field, Nigel; + view all
(2022)
How did the COVID-19 pandemic affect access to condoms, chlamydia and HIV testing, and cervical cancer screening at a population level in Britain? (Natsal-COVID).
Sexually Transmitted Infections
10.1136/sextrans-2022-055516.
(In press).
|
|
Dickin, Sarah;
Vanhuyse, Fedra;
Stirrup, Oliver;
Liera, Carla;
Copas, Andrew;
Odhiambo, Aloyce;
Palmer, Tom;
... Skordis, Jolene; + view all
(2022)
Implementation of the Afya conditional cash transfer intervention to retain women in the continuum of care: a mixed-methods process evaluation.
BMJ Open
, 12
(9)
, Article e060748. 10.1136/bmjopen-2022-060748.
|
|
Estcourt, Claudia S;
Stirrup, Oliver;
Copas, Andrew;
Low, Nicola;
Mapp, Fiona;
Saunders, John;
Mercer, Catherine H;
... Cassell, Jackie A; + view all
(2022)
Accelerated partner therapy contact tracing for people with chlamydia (LUSTRUM): a crossover cluster-randomised controlled trial.
The Lancet Public Health
, 7
(10)
e853-e865.
10.1016/s2468-2667(22)00204-3.
(In press).
|
|
Gibbs, Jo;
Howarth, Alison R;
Sheringham, Jessica;
Jackson, Louise J;
Wong, Geoff;
Copas, Andrew;
Crundwell, David J;
... Burns, Fiona M; + view all
(2022)
Assessing the impact of online postal self-sampling for sexually transmitted infections on health inequalities, access to care and clinical outcomes in the UK: protocol for ASSIST, a realist evaluation.
BMJ Open
, 12
(12)
, Article e067170. 10.1136/bmjopen-2022-067170.
|
|
Hamada, Y;
Fong, CJ;
Copas, A;
Hurst, JR;
Rangaka, MX;
(2022)
Risk for development of active tuberculosis in patients with chronic airway disease-a systematic review of evidence.
Transactions of the Royal Society of Tropical Medicine and Hygiene
, 116
(5)
pp. 390-398.
10.1093/trstmh/trab122.
|
|
Kahan, Brennan C;
Li, Fan;
Copas, Andrew J;
Harhay, Michael O;
(2022)
Estimands in cluster-randomized trials: choosing analyses that answer the right question.
International Journal of Epidemiology
10.1093/ije/dyac131.
(In press).
|
|
Krutikov, M;
Palmer, T;
Tut, G;
Fuller, C;
Azmi, B;
Giddings, R;
Shrotri, M;
... Shallcross, L; + view all
(2022)
Prevalence and duration of detectable SARS-CoV-2 nucleocapsid antibodies in staff and residents of long-term care facilities over the first year of the pandemic (VIVALDI study): prospective cohort study in England.
The Lancet. Healthy longevity
, 3
(1)
pp. 13-21.
10.1016/S2666-7568(21)00282-8.
|
|
|
Krutikov, Maria;
Stirrup, Oliver;
Nacer-Laidi, Hadjer;
Azmi, Borscha;
Fuller, Chris;
Tut, Gokhan;
Palmer, Tom;
... Shallcross, Laura; + view all
(2022)
Outcomes of SARS-CoV-2 omicron infection in residents of long-term care facilities in England (VIVALDI): a prospective, cohort study.
The Lancet Healthy Longevity
, 3
(5)
e347-e355.
10.1016/s2666-7568(22)00093-9.
|
|
Mitchell, Kirstin R;
Shimonovich, Michal;
Bosó Pérez, Raquel;
Dema, Emily;
Clifton, Soazig;
Riddell, Julie;
Copas, Andrew J;
... Field, Nigel; + view all
(2022)
Initial Impacts of COVID-19 on Sex Life and Relationship Quality in Steady Relationships in Britain: Findings from a Large, Quasi-representative Survey (Natsal-COVID).
The Journal of Sex Research
pp. 1-12.
10.1080/00224499.2022.2035663.
(In press).
|
|
Paranthaman, Karthik;
Subbarao, Sathyavani;
Andrews, Nick;
Kirsebom, Freja;
Gower, Charlotte;
Lopez-Bernal, Jamie;
Ramsay, Mary;
(2022)
Effectiveness of BNT162b2 and ChAdOx-1 vaccines in residents of long-term care facilities in England using a time-varying proportional hazards model.
Age and Ageing
, 51
(5)
, Article afac115. 10.1093/ageing/afac115.
|
|
Rahman, A;
Thangaratinam, S;
Copas, A;
Zenner, D;
White, PJ;
Griffiths, C;
Abubakar, I;
... Kunst, H; + view all
(2022)
A feasibility study evaluating the uptake, effectiveness and acceptability of routine screening of pregnant migrants for latent tuberculosis infection in antenatal care: a research protocol.
BMJ Open
, 12
(4)
, Article e058734. 10.1136/bmjopen-2021-058734.
|
|
|
Relph, S;
Vieira, MC;
Copas, A;
Coxon, K;
Alagna, A;
Briley, A;
Johnson, M;
... DESIGN Trial Team, .; + view all
(2022)
Improving antenatal detection of small-for-gestational-age fetus: economic evaluation of Growth Assessment Protocol.
Ultrasound in Obstetrics and Gynecology
, 60
(5)
pp. 620-631.
10.1002/uog.26022.
|
|
Relph, Sophie;
Coxon, Kirstie;
Vieira, Matias C;
Copas, Andrew;
Healey, Andrew;
Alagna, Alessandro;
Briley, Annette;
... Francis, Jillian; + view all
(2022)
Effect of the Growth Assessment Protocol on the DEtection of Small for GestatioNal age fetus: process evaluation from the DESiGN cluster randomised trial.
Implementation Science
, 17
(1)
, Article 60. 10.1186/s13012-022-01228-1.
|
|
Shrotri, Madhumita;
Krutikov, Maria;
Nacer-Laidi, Hadjer;
Azmi, Borscha;
Palmer, Tom;
Giddings, Rebecca;
Fuller, Christopher;
... Shallcross, Laura; + view all
(2022)
Duration of vaccine effectiveness against SARS-CoV-2 infection, hospitalisation, and death in residents and staff of long-term care facilities in England (VIVALDI): a prospective cohort study.
The Lancet Healthy Longevity
, 3
(7)
e470-e480.
10.1016/s2666-7568(22)00147-7.
|
|
Sonnenberg, Pam;
Menezes, Dee;
Freeman, Lily;
Maxwell, Karen J;
Reid, David;
Clifton, Soazig;
Tanton, Clare;
... Field, Nigel; + view all
(2022)
Intimate physical contact between people from different households during the COVID-19 pandemic: a mixed-methods study from a large, quasi-representative survey (Natsal-COVID).
BMJ Open
, 12
(2)
, Article e055284. 10.1136/bmjopen-2021-055284.
|
|
|
Stirrup, Oliver;
Blackstone, James;
Mapp, Fiona;
MacNeil, Alyson;
Panca, Monica;
Holmes, Alison;
Machin, Nicholas;
... Breuer, Judith; + view all
(2022)
Effectiveness of rapid SARS-CoV-2 genome sequencing in supporting infection control for hospital-onset COVID-19 infection: multicenter, prospective study.
eLife
, 11
10.7554/elife.78427.
(In press).
|
|
Stirrup, Oliver;
Krutikov, Maria;
Tut, Gokhan;
Palmer, Tom;
Bone, David;
Bruton, Rachel;
Fuller, Chris;
... Shallcross, Laura; + view all
(2022)
SARS-CoV-2 anti-spike antibody levels following second dose of ChAdOx1 nCov-19 or BNT162b2 in residents of long-term care facilities in England (VIVALDI).
Journal of Infectious Diseases
10.1093/infdis/jiac146.
(In press).
|
|
Stirrup, Oliver;
Krutikov, Maria;
Tut, Gokhan;
Palmer, Tom;
Bone, David;
Bruton, Rachel;
Fuller, Christopher;
... Shallcross, Laura; + view all
(2022)
SARS-CoV-2 anti-spike antibody levels following second dose of ChAdOx1 nCov-19 or BNT162b2 in residents of long-term care facilities in England (VIVALDI).
MedRxiv: Cold Spring Harbor, NY, USA.
|
|
Tut, Gokhan;
Lancaster, Tara;
Butler, Megan S;
Sylla, Panagiota;
Spalkova, Eliska;
Bone, David;
Kaur, Nayandeep;
... Moss, Paul; + view all
(2022)
Robust SARS-CoV-2-specific and heterologous immune responses in vaccine-naïve residents of long-term care facilities who survive natural infection.
Nature Aging
, 2
pp. 536-547.
10.1038/s43587-022-00224-w.
|
|
Tut, Gokhan;
Lancaster, Tara;
Sylla, Panagiota;
Butler, Megan S;
Kaur, Nayandeep;
Spalkova, Eliska;
Bentley, Christopher;
... Moss, Paul; + view all
(2022)
Antibody and cellular immune responses following dual COVID-19 vaccination within infection-naive residents of long-term care facilities: an observational cohort study.
The Lancet Healthy Longevity
, 3
(7)
e461-e469.
10.1016/s2666-7568(22)00118-0.
|
|
Vanhuyse, F;
Stirrup, O;
Odhiambo, A;
Palmer, T;
Dickin, S;
Skordis, J;
Batura, N;
... Copas, A; + view all
(2022)
Effectiveness of conditional cash transfers (Afya credits incentive) to retain women in the continuum of care during pregnancy, birth and the postnatal period in Kenya: a cluster-randomised trial.
BMJ Open
, 12
(1)
, Article e055921. 10.1136/bmjopen-2021-055921.
|
|
|
Vieira, Matias C;
Relph, Sophie;
Muruet-Gutierrez, Walter;
Elstad, Maria;
Coker, Bolaji;
Moitt, Natalie;
Delaney, Louisa;
... Pasupathy, Dharmintra; + view all
(2022)
Evaluation of the Growth Assessment Protocol (GAP) for antenatal detection of small for gestational age: The DESiGN cluster randomised trial.
PLoS Medicine
, 19
(6)
, Article e1004004. 10.1371/journal.pmed.1004004.
|
2021
|
Blackstone, J;
Stirrup, O;
Mapp, F;
Panca, M;
Copas, A;
Flowers, P;
Hockey, L;
... the COVID-19 Genomics UK (COG-UK) Consortium; + view all
(2021)
Protocol for the COG-UK hospital onset COVID-19 infection (HOCI) multicentre interventional clinical study: evaluating the efficacy of rapid genome sequencing of SARS-CoV-2 in limiting the spread of COVID-19 in United Kingdom NHS hospitals.
MedRxiv: Cold Spring Harbor, NY, USA.
|
|
|
Boshier, FAT;
Venturini, C;
Stirrup, O;
Guerra-Assunção, JA;
Alcolea-Medina, A;
Becket, AH;
Byott, M;
... COG-UK HOCI Variant Substudy consortium*, The COVID-19 Genomics; + view all
(2021)
The Alpha variant was not associated with excess nosocomial SARS-CoV-2 infection in a multi-centre UK hospital study.
Journal of Infection
, 83
(6)
pp. 693-700.
10.1016/j.jinf.2021.09.022.
|
|
Copas, AJ;
Hooper, R;
(2021)
Optimal design of cluster randomized trials allowing unequal allocation of clusters and unequal cluster size between arms.
Statistics in Medicine
10.1002/sim.9135.
(In press).
|
|
|
Croxford, S;
Burns, F;
Copas, A;
Yin, Z;
Delpech, V;
(2021)
Trends and predictors of linkage to HIV outpatient care following diagnosis in the era of expanded testing in England, Wales and Northern Ireland: Results of a national cohort study.
HIV Medicine
10.1111/hiv.13078.
(In press).
|
|
|
Dema, E;
Copas, AJ;
Clifton, S;
Conolly, A;
Blake, M;
Riddell, J;
Boso Perez, R;
... Field, N; + view all
(2021)
Methodology of Natsal-COVID Wave 1: a large, quasi-representative survey with qualitative follow-up measuring the impact of COVID-19 on sexual and reproductive health in Britain [version 1; peer review: awaiting peer review].
Wellcome Open Research
, 6
, Article 209. 10.12688/wellcomeopenres.16963.1.
|
|
|
Giddings, R;
Krutikov, M;
Palmer, T;
Fuller, C;
Azmi, B;
Shrotri, M;
Irwin-Singer, A;
... Shallcross, L; + view all
(2021)
Changes in COVID-19 outbreak severity and duration in long-term care facilities following vaccine introduction, England, November 2020 to June 2021.
Eurosurveillance
, 26
(46)
, Article pii=2100995. 10.2807/1560-7917.ES.2021.26.46.2100995.
|
|
|
Hooper, R;
Copas, AJ;
(2021)
Optimal design of cluster randomised trials with continuous recruitment and prospective baseline period.
Clinical Trials
, 18
(2)
pp. 147-157.
10.1177/1740774520976564.
|
|
King, C;
Pires, M;
Ahmed, N;
Akter, K;
Kuddus, A;
Copas, A;
Haghparast-Bidgoli, H;
... Fottrell, E; + view all
(2021)
Community participatory learning and action cycle groups to reduce type 2 diabetes in Bangladesh (D:Clare trial): study protocol for a stepped-wedge cluster randomised controlled trial.
Trials
, 22
, Article 235. 10.1186/s13063-021-05167-y.
|
|
|
Krutikov, M;
Palmer, T;
Tut, G;
Fuller, C;
Shrotri, M;
Williams, H;
Davies, D;
... Shallcross, L; + view all
(2021)
Incidence of SARS-CoV-2 infection according to baseline antibody status in staff and residents of 100 long-term care facilities (VIVALDI): a prospective cohort study.
The Lancet Healthy Longevity
, 2
(6)
e362-e370.
10.1016/s2666-7568(21)00093-3.
|
|
|
Macdowall, WG;
Clifton, S;
Palmer, MJ;
Tanton, C;
Copas, AJ;
Lee, DM;
Mitchell, KR;
... Wellings, K; + view all
(2021)
Salivary Testosterone and Sexual Function and Behavior in Men and Women: Findings from the Third British National Survey of Sexual Attitudes and Lifestyles (Natsal-3).
Journal of Sex Research
pp. 1-15.
10.1080/00224499.2021.1968327.
(In press).
|
|
|
Mercer, CH;
Clifton, S;
Riddell, J;
Tanton, C;
Freeman, L;
Copas, AJ;
Dema, E;
... Mitchell, KR; + view all
(2021)
Impacts of COVID-19 on sexual behaviour in Britain: findings from a large, quasi-representative survey (Natsal-COVID).
Sexually Transmitted Infections
10.1136/sextrans-2021-055210.
(In press).
|
|
|
Nair, N;
Tripathy, PK;
Gope, R;
Rath, S;
Pradhan, H;
Rath, S;
Kumar, A;
... Prost, A; + view all
(2021)
Effectiveness of participatory women’s groups scaled up by the public health system to improve birth outcomes in Jharkhand, eastern India: a pragmatic cluster non-randomised controlled trial.
BMJ Global Health
, 6
(11)
, Article e005066. 10.1136/bmjgh-2021-005066.
|
|
|
Relph, S;
Elstad, M;
Coker, B;
Vieira, MC;
Moitt, N;
Gutierrez, WM;
Khalil, A;
... Pasupathy, D; + view all
(2021)
Using electronic patient records to assess the effect of a complex antenatal intervention in a cluster randomised controlled trial—data management experience from the DESiGN Trial team.
Trials
, 22
(1)
, Article 95. 10.1186/s13063-021-05141-8.
|
|
|
Shrotri, M;
Krutikov, M;
Palmer, T;
Giddings, R;
Azmi, B;
Subbarao, S;
Fuller, C;
... Shallcross, L; + view all
(2021)
Vaccine effectiveness of the first dose of ChAdOx1 nCoV-19 and BNT162b2 against SARS-CoV-2 infection in residents of long-term care facilities in England (VIVALDI): a prospective cohort study.
The Lancet Infectious Diseases
10.1016/S1473-3099(21)00289-9.
(In press).
|
|
|
South, A;
Joharatnam-Hogan, N;
Purvis, C;
James, EC;
Diaz-Montana, C;
Cragg, WJ;
Tweed, C;
... Copas, AJ; + view all
(2021)
Testing approaches to sharing trial results with participants: The Show RESPECT cluster randomised, factorial, mixed methods trial.
PLoS Medicine
, 18
(10)
, Article e1003798. 10.1371/journal.pmed.1003798.
(In press).
|
|
Stirrup, O;
Boshier, F;
Venturini, C;
Guerra-Assunção, JA;
Alcolea-Medina, A;
Beckett, A;
Charalampous, T;
... Breuer, J; + view all
(2021)
SARS-CoV-2 lineage B.1.1.7 is associated with greater disease severity among hospitalised women but not men: multicentre cohort study.
BMJ Open Respiratory Research
, 8
(1)
, Article e001029. 10.1136/bmjresp-2021-001029.
|
|
|
Tut, G;
Lancaster, T;
Krutikov, M;
Sylla, P;
Bone, D;
Kaur, N;
Spalkova, E;
... Moss, P; + view all
(2021)
Profile of humoral and cellular immune responses to single doses of BNT162b2 or ChAdOx1 nCoV-19 vaccines in residents and staff within residential care homes (VIVALDI): an observational study.
The Lancet Healthy Longevity
, 2
(9)
e544-e553.
10.1016/s2666-7568(21)00168-9.
|
2020
|
Copas, A;
Burkill, S;
Conrad, F;
Couper, MP;
Erens, B;
(2020)
An evaluation of whether propensity score adjustment can remove the self-selection bias inherent to web panel surveys addressing sensitive health behaviours.
BMC Medical Research Methodology
, 20
(1)
, Article 251. 10.1186/s12874-020-01134-4.
|
|
|
Curtis, T;
Rodger, AJ;
Burns, F;
Nardone, A;
Copas, A;
Wayal, S;
(2020)
Patterns of sexualised recreational drug use and its association with risk behaviours and sexual health outcomes in men who have sex with men in London, UK: a comparison of cross-sectional studies conducted in 2013 and 2016.
Sexually Transmitted Infections
, 96
(3)
pp. 197-203.
10.1136/sextrans-2019-054139.
|
|
|
Estcourt, CS;
Howarth, AR;
Copas, A;
Low, N;
Mapp, F;
Woode Owusu, M;
Flowers, P;
... Cassell, JA; + view all
(2020)
Accelerated partner therapy (APT) partner notification for people with Chlamydia trachomatis: protocol for the Limiting Undetected Sexually Transmitted infections to RedUce Morbidity (LUSTRUM) APT cross-over cluster randomised controlled trial.
BMJ Open
, 10
(3)
, Article e034806. 10.1136/bmjopen-2019-034806.
|
|
|
Gilson, R;
Nugent, D;
Bennett, K;
Dore, C;
Murray, M;
Meadows, J;
Haddow, L;
... Copas, A; + view all
(2020)
Imiquimod versus podophyllotoxin, with and without human papillomavirus vaccine, for anogenital warts: the HIPvac factorial RCT.
Health Technology Assessment
, 24
(47)
10.3310/hta24470.
|
|
|
Gupta, RK;
Calderwood, CJ;
Yavlinsky, A;
Krutikov, M;
Quartagno, M;
Aichelburg, MC;
Altet, N;
... Abubakar, I; + view all
(2020)
Discovery and validation of a personalized risk predictor for incident tuberculosis in low transmission settings.
Nature Medicine
, 26
(12)
pp. 1941-1949.
10.1038/s41591-020-1076-0.
|
|
Gupta, RK;
Turner, CT;
Venturini, C;
Esmail, H;
Rangaka, MX;
Copas, A;
Lipman, M;
... Noursadeghi, M; + view all
(2020)
Concise whole blood transcriptional signatures for incipient
tuberculosis: a systematic review and patient-level pooled
meta-analysis.
The Lancet Respiratory Medicine
10.1016/S2213-2600(19)30282-6.
(In press).
|
|
|
Harling, G;
Copas, A;
Clifton, S;
Johnson, AM;
Field, N;
Sonnenberg, P;
Mercer, CH;
(2020)
Effect of weighting for sampling and non-response on estimates of STI prevalence in the third British National Survey of Sexual Attitudes and Lifestyles (Natsal-3).
Sexually Transmitted Infections
, 96
(7)
10.1136/sextrans-2019-054342.
|
|
Kasza, J;
Hooper, R;
Copas, A;
Forbes, AB;
(2020)
Sample size and power calculations for open cohort longitudinal cluster randomized trials.
Statistics in Medicine
, 39
(13)
pp. 1871-1883.
10.1002/sim.8519.
|
|
Krutikov, M;
Palmer, T;
Donaldson, A;
Lorencatto, F;
Forbes, G;
Copas, A;
Robson, J;
... Shallcross, L; + view all
(2020)
Study Protocol: Understanding SARS-Cov-2 infection, immunity and its duration in care home residents and staff in England (VIVALDI) [version 2; peer review: 2 approved].
Wellcome Open Research
, 5
, Article 232. 10.12688/wellcomeopenres.16193.2.
|
|
|
Quartagno, M;
Walker, AS;
Babiker, AG;
Turner, RM;
Parmar, MKB;
Copas, A;
White, IR;
(2020)
Handling an uncertain control group event risk in non-inferiority trials: non-inferiority frontiers and the power-stabilising transformation.
Trials
, 21
, Article 145. 10.1186/s13063-020-4070-4.
|
|
|
Rath, S;
Prost, A;
Samal, S;
Pradhan, H;
Copas, A;
Gagrai, S;
Rath, S;
... Rose-Clarke, K; + view all
(2020)
Community youth teams facilitating participatory adolescent groups, youth leadership activities and livelihood promotion to improve school attendance, dietary diversity and mental health among adolescent girls in rural eastern India: protocol for a cluster-randomised controlled trial.
Trials
, 21
, Article 52. 10.1186/s13063-019-3984-1.
|
|
|
Stephenson, J;
Bailey, JV;
Blandford, A;
Brima, N;
Copas, A;
D’Souza, P;
Gubijev, A;
... Oliver, S; + view all
(2020)
An interactive website to aid young women's choice of contraception: feasibility and efficacy RCT.
Health Technology Assessment
, 24
(56)
10.3310/hta24560.
|
|
|
Stephenson, J;
Bailey, JV;
Gubijev, A;
D'Souza, P;
Oliver, S;
Blandford, A;
Hunter, R;
... Copas, A; + view all
(2020)
An interactive website for informed contraception choice: randomised evaluation of Contraception Choices.
Digital Health
, 6
pp. 1-16.
10.1177/2055207620936435.
|
|
2019
|
Batura, N;
Skordis, J;
Palmer, T;
Odiambo, A;
Copas, A;
Vanhuyse, F;
Dickin, S;
... Haghparast-Bidgoli, H; + view all
(2019)
Cost-effectiveness of conditional cash transfers to retain women in the continuum of care during pregnancy, birth and the postnatal period: protocol for an economic evaluation of the Afya trial in Kenya.
BMJ Open
, 9
(11)
, Article e032161. 10.1136/bmjopen-2019-032161.
|
|
|
Burman, M;
Copas, A;
Zenner, D;
Hickson, V;
Gosce, L;
Trathen, D;
Ashcroft, R;
... Kunst, H; + view all
(2019)
Protocol for a cluster randomised control trial evaluating the efficacy and safety of treatment for latent tuberculosis infection in recent migrants within primary care: the CATAPuLT trial.
BMC Public Health
, 19
(1)
, Article 1598. 10.1186/s12889-019-7983-7.
|
|
|
Copas, AJ;
Hooper, R;
(2019)
Cluster randomised trials with different numbers of measurements at baseline and endline: Sample size and optimal allocation.
Clinical Trials
10.1177/1740774519873888.
(In press).
|
|
|
Daruwalla, N;
Machchhar, U;
Pantvaidya, S;
D’Souza, V;
Gram, L;
Copas, A;
Osrin, D;
(2019)
Community interventions to prevent violence against women and girls in informal settlements in Mumbai: the SNEHA-TARA pragmatic cluster randomised controlled trial.
Trials
, 20
, Article 743. 10.1186/s13063-019-3817-2.
|
|
Hooper, R;
Copas, A;
(2019)
Stepped wedge trials with continuous recruitment require new ways of thinking.
Journal of Clinical Epidemiology
, 116
pp. 161-166.
10.1016/j.jclinepi.2019.05.037.
|
|
King, C;
Llewellyn, C;
Shahmanesh, M;
Abraham, C;
Bailey, J;
Burns, F;
Clark, L;
... Gilson, R; + view all
(2019)
Sexual risk reduction interventions for patients attending sexual health clinics: a mixed-methods feasibility study.
Health Technology Assessment
, 23
, Article 12. 10.3310/hta23120.
|
|
|
Kloprogge, F;
Hammond, R;
Copas, A;
Gillespie, SH;
Della Pasqua, O;
(2019)
Can phenotypic data complement our understanding of antimycobacterial effects for drug combinations?
Journal of Antimicrobial Chemotherapy
, 74
(12)
pp. 3530-3536.
10.1093/jac/dkz369.
(In press).
|
|
|
Koukounari, A;
Copas, AJ;
Pickles, A;
(2019)
A latent variable modelling approach for the pooled analysis of individual participant data on the association between depression and chlamydia infection in adolescence and young adulthood in the UK.
Journal of the Royal Statistical Society: Series A (Statistics in Society)
, 182
(1)
pp. 101-130.
10.1111/rssa.12387.
|
|
|
Mercer, CH;
Clifton, S;
Prior, G;
Aldridge, RW;
Bonell, C;
Copas, AJ;
Field, N;
... Sonnenberg, P; + view all
(2019)
Collecting and exploiting data to understand a nation’s sexual health needs: Implications for the British National Surveys of Sexual Attitudes and Lifestyles (Natsal).
[Editorial comment].
Sexually Transmitted Infections
10.1136/sextrans-2018-053571.
(In press).
|
|
|
Mitchell, KR;
Mercer, CH;
Prah, P;
Clifton, S;
Tanton, C;
Wellings, K;
Copas, A;
(2019)
Why Do Men Report More Opposite-Sex Sexual Partners Than Women? Analysis of the Gender Discrepancy in a British National Probability Survey.
The Journal of Sex Research
, 56
(1)
10.1080/00224499.2018.1481193.
|
|
|
Ochieng, CA;
Haghparast-Bidgoli, H;
Batura, N;
Odhiambo, A;
Shannon, G;
Copas, A;
Palmer, T;
... Skordis, J; + view all
(2019)
Conditional cash transfers to retain rural Kenyan women in the continuum of care during pregnancy, birth and the postnatal period: protocol for a cluster randomized controlled trial.
Trials
, 20
, Article 152. 10.1186/s13063-019-3224-8.
|
|
|
Prost, A;
Nair, N;
Copas, A;
Pradhan, H;
Saville, N;
Tripathy, P;
Gope, R;
... Sachdev, HS; + view all
(2019)
Mortality and recovery following moderate and severe acute malnutrition in children aged 6-18 months in rural Jharkhand and Odisha, eastern India: A cohort study.
PLoS Med
, 16
(10)
, Article e1002934. 10.1371/journal.pmed.1002934.
|
|
|
Stagg, HR;
Abubakar, I;
Campbell, CNJ;
Copas, A;
Darvell, M;
HORNE, R;
Kielmann, K;
... Lipman, M; + view all
(2019)
The IMPACT Study: Intervening with a Manualised Package to AChieve treatment adherence in people with Tuberculosis. A protocol paper for a mixed methods study, including a pilot randomised controlled trial.
BMJ Open
, 9
, Article e032760. 10.1136/bmjopen-2019-032760.
|
|
|
Varghese, B;
Copas, A;
Kumari, S;
Bandyopadhyay, S;
Sharma, J;
Saha, S;
Yadav, V;
(2019)
Does the safe childbirth checklist (SCC) program save newborn lives? Evidence from a realistic quasi-experimental study, Rajasthan, India.
Maternal Health, Neonatology and Perinatology
, 5
(3)
10.1186/s40748-019-0098-4.
|
|
|
Vieira, MC;
Relph, S;
Copas, A;
Healey, A;
Coxon, K;
Alagna, A;
Briley, A;
... DESiGN Collaborative Group, .; + view all
(2019)
The DESiGN trial (DEtection of Small for Gestational age Neonate), evaluating the effect of the Growth Assessment Protocol (GAP): study protocol for a randomised controlled trial.
Trials
, 20
(1)
, Article 154. 10.1186/s13063-019-3242-6.
|
|
2018
|
Bailey, JV;
Pavlou, M;
Copas, A;
Taylor, L;
Feder, G;
(2018)
Young people, partner abuse and sexual health: indicators of increased risk.
Journal of Gender-Based Violence
, 2
(2)
pp. 311-338.
10.1332/239868018X15263882276906.
|
|
Croxford, S;
Burns, F;
Copas, A;
Pharris, A;
Rinder Stengaard, A;
Delpech, V;
OptTEST by HIV in Europe;
(2018)
Factors associated with delayed linkage to care following HIV diagnosis in the WHO European Region.
HIV Medicine
, 19
(S1)
pp. 40-46.
10.1111/hiv.12585.
|
|
Croxford, S;
Raben, D;
Jakobsen, SF;
Burns, F;
Copas, A;
Brown, AE;
Delpech, VC;
(2018)
Defining linkage to care following human immunodeficiency virus (HIV) diagnosis for public health monitoring in Europe.
Eurosurveillance
, 23
(48)
10.2807/1560-7917.ES.2018.23.48.1700858.
|
|
|
Croxford, S;
Yin, Z;
Burns, F;
Copas, A;
Town, K;
Desai, S;
Skingsley, A;
... OptTEST project; + view all
(2018)
Linkage to HIV care following diagnosis in the WHO European Region: A systematic review and meta-analysis, 2006-2017.
PLoS One
, 13
(2)
, Article e0192403. 10.1371/journal.pone.0192403.
|
|
|
Croxford, S;
Yin, Z;
Kall, M;
Burns, F;
Simmons, R;
Copas, A;
Ireland, G;
... Delpech, V; + view all
(2018)
Where do we diagnose HIV infection? Monitoring new diagnoses made in nontraditional settings in England, Wales and Northern Ireland.
HIV Medicine
, 19
(7)
pp. 465-474.
10.1111/hiv.12627.
|
|
Dunn, DT;
Copas, AJ;
Brocklehurst, P;
(2018)
Superiority and non-inferiority: two sides of the same coin?
Trials
, 19
(1)
, Article 499. 10.1186/s13063-018-2885-z.
|
|
|
Fakoya, I;
Álvarez-Del Arco, D;
Monge, S;
Copas, AJ;
Gennotte, A-F;
Volny-Anne, A;
Wengenroth, C;
... aMASE Study Team, aMASE ST; + view all
(2018)
HIV testing history and access to treatment among migrants living with HIV in Europe.
Journal of the International AIDS Society
, 21
(4)
, Article e25123. 10.1002/jia2.25123.
|
|
|
Geary, RS;
Copas, AJ;
Sonnenberg, P;
Tanton, C;
King, E;
Jones, KG;
Trifonova, V;
... Mercer, CH; + view all
(2018)
Sexual mixing in opposite-sex partnerships in Britain and its implications for STI risk: findings from the third National Survey of Sexual Attitudes and Lifestyles (Natsal-3).
International Journal of Epidemiology
, Article dyy237. 10.1093/ije/dyy237.
|
|
|
Hall, JA;
Barrett, G;
Copas, A;
Phiri, T;
Malata, A;
Stephenson, J;
(2018)
Reassessing Pregnancy Intention and Its Relation to Maternal, Perinatal and Neonatal Outcomes in a Low-income Setting: a Cohort Study.
PLoS One
, 13
(10)
, Article e0205487. 10.1371/journal.pone.0205487.
|
|
|
Harris-Fry, HA;
Paudel, P;
Harrisson, T;
Shrestha, N;
Jha, S;
Beard, BJ;
Copas, A;
... Saville, NM; + view all
(2018)
Participatory Women's Groups with Cash Transfers Can Increase Dietary Diversity and Micronutrient Adequacy during Pregnancy, whereas Women's Groups with Food Transfers Can Increase Equity in Intrahousehold Energy Allocation.
The Journal of Nutrition
, 148
(9)
pp. 1472-1483.
10.1093/jn/nxy109.
|
|
|
Hemming, K;
Taljaard, M;
McKenzie, JE;
Hooper, R;
Copas, A;
Thompson, JA;
Dixon-Woods, M;
... Grimshaw, JM; + view all
(2018)
Reporting of stepped wedge cluster randomised trials: extension of the CONSORT 2010 statement with explanation and elaboration.
BMJ
, 363
, Article k1614. 10.1136/bmj.k1614.
|
|
|
King, C;
Hughes, G;
Furegato, M;
Mohammed, H;
Were, J;
Copas, A;
Gilson, R;
... Mercer, CH; + view all
(2018)
Predicting STI Diagnoses Amongst MSM and Young People Attending Sexual Health Clinics in England: Triage Algorithm Development and Validation Using Routine Clinical Data.
EClinicalMedicine
, 4-5
pp. 43-51.
10.1016/j.eclinm.2018.11.002.
|
|
|
Murray, ML;
Meadows, J;
Doré, CJ;
Copas, AJ;
Haddow, LJ;
Lacey, C;
Jit, M;
... Gilson, R; + view all
(2018)
Human papillomavirus infection: protocol for a randomised controlled trial of imiquimod cream (5%) versus podophyllotoxin cream (0.15%), in combination with quadrivalent human papillomavirus or control vaccination in the treatment and prevention of recurrence of anogenital warts (HIPvac trial).
BMC Medical Research Methodology
, 18
(1)
, Article 125. 10.1186/s12874-018-0581-z.
|
|
|
Saunders, J;
Brima, N;
Orzol, M;
Phillips, L;
Milinkovic, A;
Carpenter, G;
Copas, A;
(2018)
Prospective observational study to evaluate the performance of the BioSure HIV Self-Test in the hands of lay users.
Sexually Transmitted Infections
, 94
(3)
pp. 169-173.
10.1136/sextrans-2017-053231.
|
|
|
Saville, NM;
Shrestha, BP;
Style, S;
Harris-Fry, H;
Beard, BJ;
Sen, A;
Jha, S;
... Costello, A; + view all
(2018)
Impact on birth weight and child growth of Participatory Learning and Action women's groups with and without transfers of food or cash during pregnancy: Findings of the low birth weight South Asia cluster-randomised controlled trial (LBWSAT) in Nepal.
PLoS One
, 13
(5)
, Article e0194064. 10.1371/journal.pone.0194064.
|
|
|
Stirrup, OT;
Copas, AJ;
Phillips, AN;
Gill, MJ;
Geskus, RB;
Touloumi, G;
Young, J;
... CASCADE Collaboration in EuroCoord; + view all
(2018)
Predictors of CD4 cell recovery following initiation of antiretroviral therapy among HIV-1 positive patients with well-estimated dates of seroconversion.
HIV Medicine
, 19
(3)
pp. 184-194.
10.1111/hiv.12567.
|
|
2017
|
Brima, N;
Lampe, FC;
Copas, A;
Gilson, R;
Williams, I;
Johnson, MA;
Phillips, AN;
(2017)
Early virological response to HIV treatment: can we predict who is likely to experience subsequent treatment failure? Results from an observational cohort study, London, UK.
Journal of the International AIDS Society
, 20
(1)
, Article 21567. 10.7448/IAS.20.1.21567.
|
|
|
Croxford, S;
Kitching, A;
Desai, S;
Kall, M;
Edelstein, M;
Skingsley, A;
Burns, F;
... Delpech, V; + view all
(2017)
Mortality and causes of death in people diagnosed with HIV in the era of highly active antiretroviral therapy compared with the general population: an analysis of a national observational cohort.
The Lancet Public Health
, 2
(1)
e35-e46.
10.1016/S2468-2667(16)30020-2.
|
|
|
Estcourt, CS;
Gibbs, J;
Sutcliffe, LJ;
Gkatzidou, V;
Tickle, L;
Hone, K;
Aicken, C;
... Sonnenberg, P; + view all
(2017)
The eSexual Health Clinic system for management, prevention, and control of sexually transmitted infections: exploratory studies in people testing for Chlamydia trachomatis.
The Lancet Public Health
, 2
(4)
e182-e190.
10.1016/S2468-2667(17)30034-8.
|
|
Fakoya, I;
Álvarez-Del Arco, D;
Copas, AJ;
Teixeira, B;
Block, K;
Gennotte, A-F;
Volny-Anne, A;
... Burns, FM; + view all
(2017)
Factors Associated With Access to HIV Testing and Primary Care Among Migrants Living in Europe: Cross-Sectional Survey.
JMIR Public Health and Surveillance
, 3
(4)
, Article e84. 10.2196/publichealth.7741.
|
|
|
Fragaszy, EB;
Warren-Gash, C;
Wang, L;
Copas, A;
Dukes, O;
Edmunds, WJ;
Goonetilleke, N;
... Flu Watch Group; + view all
(2017)
Cohort Profile: The Flu Watch Study.
International Journal of Epidemiology
, 46
(2)
, Article e18. 10.1093/ije/dyv370.
|
|
|
Hall, JA;
Barrett, G;
Copas, A;
Stephenson, JM;
(2017)
London measure of Unplanned Pregnancy: guidance for its use as an outcome measure.
Patient Related Outcome Measures
, 8
pp. 43-56.
10.2147/PROM.S122420.
|
|
Hall, JA;
Benton, L;
Copas, A;
Stephenson, J;
(2017)
Pregnancy Intention and Pregnancy Outcome: Systematic Review and Meta-Analysis.
Maternal and Child Health Journal
, 21
(3)
pp. 670-704.
10.1007/s10995-016-2237-0.
|
|
Keevil, BG;
Clifton, S;
Tanton, C;
Macdowall, W;
Copas, AJ;
Lee, D;
Field, N;
... Wu, FCW; + view all
(2017)
Distribution of Salivary Testosterone in Men and Women in a British General Population-Based Sample: The Third National Survey of Sexual Attitudes and Lifestyles (Natsal-3).
Journal of the Endocrine Society
, 1
(1)
pp. 14-25.
10.1210/js.2016-1029.
|
|
Milinkovic, A;
Benn, P;
Arenas-Pinto, A;
Brima, N;
Copas, A;
Clarke, A;
Fisher, M;
... MiPEP Trial Team, .; + view all
(2017)
Randomized controlled trial of the tolerability and completion of maraviroc compared with Kaletra® in combination with Truvada® for HIV post-exposure prophylaxis (MiPEP Trial).
Journal of Antimicrobial Chemotherapy
, 72
(6)
pp. 1760-1768.
10.1093/jac/dkx062.
|
|
Nair, N;
Tripathy, P;
Sachdev, HS;
Pradhan, H;
Bhattacharyya, S;
Gope, R;
Gagrai, S;
... Prost, A; + view all
(2017)
Effect of participatory women's groups and counselling through home visits on children's linear growth in rural eastern India (CARING trial): a cluster-randomised controlled trial.
The Lancet Global Health
, 5
(10)
e1004-e1016.
10.1016/S2214-109X(17)30339-X.
|
|
|
Sibanda, EL;
Tumushime, M;
Mufuka, J;
Mavedzenge, SN;
Gudukeya, S;
Bautista-Arredondo, S;
Hatzold, K;
... Cowan, FM; + view all
(2017)
Effect of non-monetary incentives on uptake of couples' counselling and testing among clients attending mobile HIV services in rural Zimbabwe: a cluster-randomised trial.
The Lancet Global Health
, 5
(9)
e907-e915.
10.1016/S2214-109X(17)30296-6.
|
|
|
Thompson, JA;
Fielding, K;
Hargreaves, J;
Copas, A;
(2017)
The optimal design of stepped wedge trials with equal allocation to sequences and a comparison to other trial designs.
Clinical Trials
, 14
(6)
pp. 639-647.
10.1177/1740774517723921.
|
|
Wayal, S;
Hughes, G;
Sonnenberg, P;
Mohammed, H;
Copas, AJ;
Gerressu, M;
Tanton, C;
... Mercer, CH; + view all
(2017)
Ethnic variations in sexual behaviours and sexual health markers: findings from the third British National Survey of Sexual Attitudes and Lifestyles (Natsal-3).
The Lancet Public Health
, 2
(10)
e458-e472.
10.1016/S2468-2667(17)30159-7.
|
|
2016
|
Aghaizu, A;
Wayal, S;
Nardone, A;
Parsons, V;
Copas, A;
Mercey, D;
Hart, G;
... Johnson, AM; + view all
(2016)
Sexual behaviours, HIV testing, and the proportion of men at risk of transmitting and acquiring HIV in London, UK, 2000-13: a serial cross-sectional study.
The Lancet HIV
, 3
(9)
e431-e440.
10.1016/S2352-3018(16)30037-6.
|
|
Burkill, S;
Copas, A;
Couper, MP;
Clifton, S;
Prah, P;
Datta, J;
Conrad, F;
... Erens, B; + view all
(2016)
Using the Web to Collect Data on Sensitive Behaviours: A Study Looking at Mode Effects on the British National Survey of Sexual Attitudes and Lifestyles.
PLoS One
, 11
(2)
, Article e0147983. 10.1371/journal.pone.0147983.
|
|
|
Clifton, S;
Macdowall, W;
Copas, AJ;
Tanton, C;
Keevil, BG;
Lee, DM;
Mitchell, KR;
... Wu, F; + view all
(2016)
Salivary testosterone levels and health status in men and women in the British general population: findings from the third National Survey of Sexual Attitudes and Lifestyles (Natsal-3).
Journal of Clinical Endocrinology & Metabolism
, 101
(11)
pp. 3939-3951.
10.1210/jc.2016-1669.
|
|
El Bouzidi, K;
Collier, D;
Nastouli, E;
Copas, AJ;
Miller, RF;
Gupta, RK;
(2016)
Virological efficacy of PI monotherapy for HIV-1 in clinical practice.
Journal of Antimicrobial Chemotherapy
, 71
(11)
pp. 3228-3234.
10.1093/jac/dkw265.
|
|
Fakoya, I;
Álvarez-Del Arco, D;
Monge, S;
Copas, AJ;
Gennotte, AF;
Volny-Anne, A;
Göpel, S;
... Burns, FM; + view all
(2016)
Advancing Migrant Access to Health Services in Europe (AMASE): Protocol for a Cross-sectional Study.
JMIR Research Protocols
, 5
(2)
, Article e74. 10.2196/resprot.5085.
|
|
|
Hall, JA;
Barrett, G;
Phiri, T;
Copas, A;
Malata, A;
Stephenson, J;
(2016)
Prevalence and Determinants of Unintended Pregnancy in Mchinji District, Malawi; Using a Conceptual Hierarchy to Inform Analysis.
PLOS ONE
, 11
(10)
10.1371/journal.pone.0165621.
|
|
King, EM;
Oomeer, S;
Gilson, R;
Copas, A;
Beddows, S;
Soldan, K;
Jit, M;
... Sonnenberg, P; + view all
(2016)
Oral Human Papillomavirus Infection in Men Who Have Sex with Men: A Systematic Review and Meta-Analysis.
PLOS ONE
, 11
(7)
, Article e0157976. 10.1371/journal.pone.0157976.
|
|
Mitchell, KR;
Jones, KG;
Wellings, K;
Johnson, AM;
Graham, CA;
Datta, J;
Copas, AJ;
... Mercer, CH; + view all
(2016)
Estimating the Prevalence of Sexual Function Problems: The Impact of Morbidity Criteria.
Journal of Sexual Research
, 53
(8)
pp. 955-967.
10.1080/00224499.2015.1089214.
|
|
|
Mitchell, KR;
Prah, P;
Mercer, CH;
Datta, J;
Tanton, C;
Macdowall, W;
Copas, AJ;
... Wellings, K; + view all
(2016)
Medicated sex in Britain: evidence from the third National Survey of Sexual Attitudes and Lifestyles.
Sexually Transmitted Infections
, 92
(1)
pp. 32-38.
10.1136/sextrans-2015-052094.
|
|
Palmer, MJ;
Clarke, L;
Ploubidis, GB;
Mercer, CH;
Gibson, LJ;
Johnson, AM;
Copas, AJ;
(2016)
Is "Sexual Competence" at First Heterosexual Intercourse Associated With Subsequent Sexual Health Status?
The Journal of Sex Research
, 54
(1)
pp. 91-104.
10.1080/00224499.2015.1134424.
|
|
Prah, P;
Hickson, F;
Bonell, C;
McDaid, LM;
Johnson, AM;
Wayal, S;
Clifton, S;
... Mercer, CH; + view all
(2016)
Men who have sex with men in Great Britain: comparing methods and estimates from probability and convenience sample surveys.
Sexually Transmitted Infections
, 92
(6)
pp. 455-463.
10.1136/sextrans-2015-052389.
|
|
|
Saville, N;
Bhim, S;
Style, S;
Harris-Fry, H;
Beard, J;
Sengupta, A;
Jha, S;
... Costello, A; + view all
(2016)
Protocol of the Low Birth Weight South Asia Trial (LBWSAT), a cluster-randomised controlled trial testing impact on birth weight and infant nutrition of Participatory Learning and Action through women's groups, with and without unconditional transfers of fortified food or cash during pregnancy in Nepal.
BMC Pregnancy and Childbirth
, 16
, Article 320. 10.1186/s12884-016-1102-x.
|
|
Simmons, R;
Malyuta, R;
Chentsova, N;
Karnets, I;
Murphy, G;
Medoeva, A;
Kruglov, Y;
... CASCADE Collaboration in EuroCoord, .; + view all
(2016)
HIV Incidence Estimates Using the Limiting Antigen Avidity EIA Assay at Testing Sites in Kiev City, Ukraine: 2013-2014.
PLoS One
, 11
(6)
, Article e0157179. 10.1371/journal.pone.0157179.
|
|
Skordis-Worrall, J;
Sinha, R;
Kumar Ojha, A;
Sarangi, S;
Nair, N;
Tripathy, P;
Sachdev, HS;
... Haghparast-Bidgoli, H; + view all
(2016)
Protocol for the economic evaluation of a community-based intervention to improve growth among children under two in rural India (CARING trial).
BMJ Open
, 6
(11)
, Article e012046. 10.1136/bmjopen-2016-012046.
|
|
Stirrup, OT;
Babiker, AG;
Carpenter, JR;
Copas, AJ;
(2016)
Fractional Brownian motion and multivariate-t models for longitudinal biomedical data, with application to CD4 counts in HIV-patients.
Statistics in Medicine
, 35
(9)
pp. 1514-1532.
10.1002/sim.6788.
|
|
|
Stirrup, OT;
Babiker, AG;
Copas, AJ;
(2016)
Combined models for pre- and post-treatment longitudinal biomarker data: an application to CD4 counts in HIV-patients.
BMC Medical Research Methodology
, 16
, Article 121. 10.1186/s12874-016-0187-2.
|
|
Wellings, K;
Palmer, MJ;
Geary, RS;
Gibson, LJ;
Copas, A;
Datta, J;
Glasier, A;
... Wilkinson, P; + view all
(2016)
Changes in conceptions in women younger than 18 years and the circumstances of young mothers in England in 2000-12: an observational study.
The Lancet
, 388
(10044)
pp. 586-595.
10.1016/S0140-6736(16)30449-4.
|
|
|
Woodhall, SC;
Soldan, K;
Sonnenberg, P;
Mercer, CH;
Clifton, S;
Saunders, P;
da Silva, F;
... Johnson, AM; + view all
(2016)
Is chlamydia screening and testing in Britain reaching young adults at risk of infection? Findings from the third National Survey of Sexual Attitudes and Lifestyles (Natsal-3).
Sexually Transmitted Infections
, 92
(3)
pp. 218-227.
10.1136/sextrans-2015-052013.
|
|
2015
|
Baio, G;
Copas, A;
Ambler, G;
Hargreaves, J;
Beard, E;
Omar, RZ;
(2015)
Sample size calculation for a stepped wedge trial.
Trials
, 16
, Article 354. 10.1186/s13063-015-0840-9.
|
|
|
Beard, E;
Lewis, JJ;
Copas, A;
Davey, C;
Osrin, D;
Baio, G;
Thompson, JA;
... Prost, A; + view all
(2015)
Stepped wedge randomised controlled trials: systematic review of studies published between 2010 and 2014.
Trials
, 16
, Article 353. 10.1186/s13063-015-0839-2.
|
|
|
Brima, N;
Burns, F;
Fakoya, I;
Kargbo, B;
Conteh, S;
Copas, A;
(2015)
Factors Associated with HIV Prevalence and HIV Testing in Sierra Leone: Findings from the 2008 Demographic Health Survey.
PLoS One
, 10
(10)
, Article e0137055. 10.1371/journal.pone.0137055.
|
|
Cassell, JA;
Dodds, J;
Estcourt, C;
Llewellyn, C;
Lanza, S;
Richens, J;
Smith, H;
... Rait, G; + view all
(2015)
The relative clinical effectiveness and cost-effectiveness of three contrasting approaches to partner notification for curable sexually transmitted infections: a cluster randomised trial in primary care.
Health Technology Assessment
, 19
(5)
xxiv, 1-115.
10.3310/hta19050.
|
|
Copas, AJ;
Lewis, JJ;
Thompson, JA;
Davey, C;
Baio, G;
Hargreaves, JR;
(2015)
Designing a stepped wedge trial: three main designs, carry-over effects and randomisation approaches.
Trials
, 16
, Article 352. 10.1186/s13063-015-0842-7.
|
|
|
Estcourt, CS;
Sutcliffe, LJ;
Copas, A;
Mercer, CH;
Roberts, TE;
Jackson, LJ;
Symonds, M;
... Cassell, JA; + view all
(2015)
Developing and testing accelerated partner therapy for partner notification for people with genital Chlamydia trachomatis diagnosed in primary care: a pilot randomised controlled trial.
Sexually Transmitted Infections
, 91
(8)
pp. 548-554.
10.1136/sextrans-2014-051994.
|
|
|
Fuller, SS;
Mercer, CH;
Copas, AJ;
Saunders, J;
Sutcliffe, LJ;
Cassell, JA;
Hart, G;
... Estcourt, CS; + view all
(2015)
The SPORTSMART study: a pilot randomised controlled trial of sexually transmitted infection screening interventions targeting men in football club settings.
Sex Transm Infect
, 91
(2)
106 - 110.
10.1136/sextrans-2014-051719.
|
|
|
Hargreaves, JR;
Copas, AJ;
Beard, E;
Osrin, D;
Lewis, JJ;
Davey, C;
Thompson, JA;
... Prost, A; + view all
(2015)
Five questions to consider before conducting a stepped wedge trial.
Trials
, 16
, Article 350. 10.1186/s13063-015-0841-8.
|
|
|
Hayward, AC;
Wang, L;
Goonetilleke, N;
Fragaszy, EB;
Bermingham, A;
Copas, A;
Dukes, O;
... Flu Watch Group; + view all
(2015)
Natural T Cell Mediated Protection Against Seasonal and Pandemic Influenza: Results of the Flu Watch Cohort Study.
American Journal of Respiratory and Critical Care Medicine
, 191
(12)
pp. 1422-1431.
10.1164/rccm.201411-1988OC.
|
|
|
Jackson, LJ;
Roberts, TE;
Fuller, SS;
Sutcliffe, LJ;
Saunders, JM;
Copas, AJ;
Mercer, CH;
... Estcourt, CS; + view all
(2015)
Exploring the costs and outcomes of sexually transmitted infection (STI) screening interventions targeting men in football club settings: preliminary cost-consequence analysis of the SPORTSMART pilot randomised controlled trial.
Sexually Transmitted Infections
, 91
(2)
pp. 100-105.
10.1136/sextrans-2014-051715.
|
|
|
Macdowall, W;
Jones, KG;
Tanton, C;
Clifton, S;
Copas, AJ;
Mercer, CH;
Palmer, MJ;
... Wellings, K; + view all
(2015)
Associations between source of information about sex and sexual health outcomes in Britain: findings from the third National Survey of Sexual Attitudes and Lifestyles (Natsal-3).
BMJ Open
, 5
(3)
, Article e007837. 10.1136/bmjopen-2015-007837.
|
|
|
Mercer, CH;
Fuller, SS;
Saunders, JM;
Muniina, P;
Copas, AJ;
Hart, GJ;
Sutcliffe, LJ;
... Estcourt, CS; + view all
(2015)
Examining the potential public health benefit of offering STI testing to men in amateur football clubs: evidence from cross-sectional surveys.
BMC Public Health
, 15
, Article 676. 10.1186/s12889-015-1951-7.
|
|
|
Nair, N;
Tripathy, P;
Sachdev, HS;
Bhattacharyya, S;
Gope, R;
Gagrai, S;
Rath, S;
... Prost, A; + view all
(2015)
Participatory women’s groups and counseling through home visits to improve child growth in rural eastern India: protocol for a cluster randomised controlled trial.
BMC Public Health
, 15
, Article 384. 10.1186/s12889-015-1655-z.
|
|
Prah, P;
Copas, AJ;
Mercer, CH;
Nardone, A;
Johnson, AM;
(2015)
Patterns of sexual mixing with respect to social, health and sexual characteristics among heterosexual couples in England: analyses of probability sample survey data.
Epidemiol Infect
, 143
(7)
1500 - 1510.
10.1017/S0950268814002155.
|
|
|
Prah, P;
Johnson, AM;
Nardone, A;
Clifton, S;
Mindell, JS;
Copas, AJ;
Robinson, C;
... Mercer, CH; + view all
(2015)
Asking about Sex in General Health Surveys: Comparing the Methods and Findings of the 2010 Health Survey for England with Those of the Third National Survey of Sexual Attitudes and Lifestyles.
PLoS One
, 10
(8)
, Article e0135203. 10.1371/journal.pone.0135203.
|
|
|
Rawson, TM;
Brima, N;
Almajid, F;
Pozniak, AL;
Janmohamed, A;
Mandalia, S;
Basnayake, S;
... Miller, RF; + view all
(2015)
Outcomes From Treating Tuberculosis With Rifampicin or Rifabutin in HIV-Infected Persons Also Receiving Antiretroviral Therapy.
[Letter].
JAIDS: Journal of Acquired Immune Deficiency Syndromes
, 68
(5)
e84-e87.
10.1097/QAI.0000000000000515.
|
|
|
Seward, N;
Prost, A;
Copas, A;
Corbin, M;
Li, L;
Colbourn, T;
Osrin, D;
... Cortina-Borja, M; + view all
(2015)
Using Observational Data to Estimate the Effect of Hand Washing and Clean Delivery Kit Use by Birth Attendants on Maternal Deaths after Home Deliveries in Rural Bangladesh, India and Nepal.
PLoS One
, 10
(8)
, Article e0136152. 10.1371/journal.pone.0136152.
|
|
|
Simmons, R;
Malyuta, R;
Chentsova, N;
Medoeva, A;
Kruglov, Y;
Yurchenko, A;
Copas, A;
... CASCADE Collaboration in EuroCoord; + view all
(2015)
HIV Testing and Diagnosis Rates in Kiev, Ukraine: April 2013 - March 2014.
PLOS One
, 10
(8)
, Article e0137062. 10.1371/journal.pone.0137062.
|
|
Sonnenberg, P;
Ison, CA;
Clifton, S;
Field, N;
Tanton, C;
Soldan, K;
Beddows, S;
... Johnson, AM; + view all
(2015)
Epidemiology of Mycoplasma genitalium in British men and women aged 16-44 years: evidence from the third National Survey of Sexual Attitudes and Lifestyles (Natsal-3).
International Journal of Epidemiology
, 44
(6)
pp. 1982-1984.
10.1093/ije/dyv194.
|
|
|
Tanton, C;
Soldan, K;
Beddows, S;
Mercer, CH;
Waller, J;
Field, N;
Clifton, S;
... Sonnenberg, P; + view all
(2015)
High-risk human papillomavirus (HPV) infection and cervical cancer prevention in Britain: Evidence of differential uptake of interventions from a probability survey.
Cancer Epidemiol Biomarkers Prev
, 24
pp. 842-853.
10.1158/1055-9965.EPI-14-1333.
|
|
Younes, L;
Houweling, TA;
Azad, K;
Kuddus, A;
Shaha, S;
Haq, B;
Nahar, T;
... Fottrell, E; + view all
(2015)
The effect of participatory women's groups on infant feeding and child health knowledge, behaviour and outcomes in rural Bangladesh: a controlled before-and-after study.
J Epidemiol Community Health
, 69
(4)
pp. 374-381.
10.1136/jech-2014-204271.
|
|
2014
|
Erens, B;
Burkill, S;
Couper, MP;
Conrad, F;
Clifton, S;
Tanton, C;
Phelps, A;
... Copas, AJ; + view all
(2014)
Nonprobability Web surveys to measure sexual behaviors and attitudes in the general population: a comparison with a probability sample interview survey.
J Med Internet Res
, 16
(12)
, Article e276. 10.2196/jmir.3382.
|
|
|
Erens, B;
Clifton, S;
Mercer, CH;
Tanton, C;
Sonnenberg, P;
Field, N;
Copas, AJ;
... Wellings, K; + view all
(2014)
Methodology of the third british national survey of sexual attitudes and lifestyles (Natsal-3).
Sexually Transmitted Infections
, 90
(2)
84 - 89.
10.1136/sextrans-2013-051359.
|
|
|
Gupta, RK;
Marks, M;
Edwards, SG;
Smith, K;
Fletcher, K;
Lee, SM;
Ramsay, A;
... Miller, RF; + view all
(2014)
A declining CD4 count and diagnosis of HIV-associated hodgkin Lymphoma: Do prior clinical symptoms and laboratory abnormalities aid diagnosis?
PLoS One
, 9
(2)
, Article e87442. 10.1371/journal.pone.0087442.
|
|
|
Miltz, A;
Price, H;
Shahmanesh, M;
Copas, A;
Gilson, R;
(2014)
Systematic Review and Meta-Analysis of L1-VLP-Based Human Papillomavirus Vaccine Efficacy against Anogenital Pre-Cancer in Women with Evidence of Prior HPV Exposure.
PLoS One
, 9
(3)
10.1371/journal.pone.0090348.
|
|
|
Sabin, T;
Matcham, J;
Bray, S;
Copas, A;
Parmar, MK;
(2014)
A quantitative process for enhancing end of phase 2 decisions.
Statistics in Biopharmaceutical Research
, 6
(1)
67 - 77.
10.1080/19466315.2013.852617.
|
|
|
Seaman, S;
Pavlou, M;
Copas, A;
(2014)
Review of methods for handling confounding by cluster and informative cluster size in clustered data.
Statistics in Medicine
, 33
(30)
pp. 5371-5387.
10.1002/sim.6277.
|
|
Stephenson, J;
Patel, D;
Barrett, G;
Howden, B;
Copas, A;
Ojukwu, O;
Pandya, P;
(2014)
How Do Women Prepare for Pregnancy? Preconception Experiences of Women Attending Antenatal Services and Views of Health Professionals.
PLoS One
, 9
(7)
, Article e103085. 10.1371/journal.pone.0103085.
|
|
|
Vale, CL;
Burdett, S;
Fisher, DJ;
Navani, N;
Parmar, MK;
Copas, AJ;
Tierney, JF;
(2014)
Should Tyrosine Kinase Inhibitors Be Considered for Advanced Non-Small-Cell Lung Cancer Patients With Wild Type EGFR? Two Systematic Reviews and Meta-Analyses of Randomized Trials.
Clinical Lung Cancer
, 16
(3)
173- 182.e4.
10.1016/j.cllc.2014.11.007.
|
|
2013
|
Bailey, JV;
Pavlou, M;
Copas, A;
McCarthy, O;
Carswell, K;
Rait, G;
Hart, G;
... Murray, E; + view all
(2013)
The Sexunzipped trial: optimizing the design of online randomized controlled trials.
J Med Internet Res
, 15
(12)
, Article e278. 10.2196/jmir.2668.
|
|
|
Field, N;
Mercer, CH;
Sonnenberg, P;
Tanton, C;
Clifton, S;
Mitchell, KR;
Erens, B;
... Johnson, AM; + view all
(2013)
Associations between health and sexual lifestyles in Britain: findings from the third National Survey of Sexual Attitudes and Lifestyles (Natsal-3).
Lancet
, 382
(9907)
pp. 1830-1844.
10.1016/S0140-6736(13)62222-9.
|
|
|
Haddow, LJ;
Floyd, S;
Copas, A;
Gilson, RJ;
(2013)
A Systematic Review of the Screening Accuracy of the HIV Dementia Scale and International HIV Dementia Scale.
PLoS One
, 8
(4)
, Article e61826. 10.1371/journal.pone.0061826.
|
|
|
Hall, J;
Barrett, G;
Mbwana, N;
Copas, A;
Malata, A;
Stephenson, J;
(2013)
Understanding pregnancy planning in a low-income country setting: validation of the London measure of unplanned pregnancy in Malawi.
BMC Pregnancy and Childbirth
, 13
(1)
, Article 200. 10.1186/1471-2393-13-200.
|
|
|
Iwamoto, A;
Seward, N;
Prost, A;
Ellis, M;
Copas, A;
Fottrell, E;
Azad, K;
... Costello, A; + view all
(2013)
Maternal infection and risk of intrapartum death: a population based observational study in South Asia.
BMC Pregnancy Childbirth
, 13
(1)
, Article 245. 10.1186/1471-2393-13-245.
|
|
|
Macdowall, W;
Gibson, LJ;
Lewis, R;
Datta, J;
Mitchell, KR;
Wellings, K;
Erens, B;
... Phelps, A; + view all
(2013)
Lifetime prevalence, associated factors, and circumstances of non-volitional sex in women and men in Britain: Findings from the third National Survey of Sexual Attitudes and Lifestyles (Natsal-3).
The Lancet
, 382
(9907)
1845 - 1855.
10.1016/S0140-6736(13)62300-4.
|
|
|
Mavhu, W;
Berwick, J;
Chirawu, P;
Makamba, M;
Copas, A;
Dirawo, J;
Willis, N;
... Cowan, FM; + view all
(2013)
Enhancing Psychosocial Support for HIV Positive Adolescents in Harare, Zimbabwe.
PLoS One
, 8
(7)
, Article e70254. 10.1371/journal.pone.0070254.
|
|
|
McCreesh, N;
Copas, A;
Seeley, J;
Johnston, LG;
Sonnenberg, P;
Hayes, RJ;
Frost, SD;
(2013)
Respondent driven sampling: determinants of recruitment and a method to improve point estimation.
PLoS One
, 8
(10)
, Article e78402. 10.1371/journal.pone.0078402.
|
|
|
Mercer, CH;
Tanton, C;
Prah, P;
Sonnenberg, P;
Field, N;
Copas, AJ;
Johnson, AM;
... Phelps, A; + view all
(2013)
Changes in sexual attitudes and lifestyles in Britain through the life course and over time: Findings from the National Surveys of Sexual Attitudes and Lifestyles (Natsal).
The Lancet
, 382
(9907)
1781 - 1794.
10.1016/S0140-6736(13)62035-8.
|
|
|
Mitchell, KR;
Datta, J;
Macdowall, W;
Wellings, K;
Ploubidis, GB;
Mercer, CH;
Jones, KG;
... Phelps, A; + view all
(2013)
Sexual function in Britain: Findings from the third National Survey of Sexual Attitudes and Lifestyles (Natsal-3).
The Lancet
, 382
(9907)
1817 - 1829.
10.1016/S0140-6736(13)62366-1.
|
|
|
Prah, P;
Copas, AJ;
Mercer, CH;
Clifton, S;
Erens, B;
Phelps, A;
Tanton, C;
... Johnson, AM; + view all
(2013)
Consistency in reporting sensitive sexual behaviours in Britain: change in reporting bias in the second and third National Surveys of Sexual Attitudes and Lifestyles (Natsal-2 and Natsal-3).
Sex Transm Infect
, 90
10.1136/sextrans-2013-051360.
|
|
|
Price, H;
Gilson, R;
Mercey, D;
Copas, A;
Parry, J;
Nardone, A;
Hart, G;
(2013)
Hepatitis C in men who have sex with men in London - a community survey.
HIV Med
, 14
(9)
pp. 578-580.
10.1111/hiv.12050.
|
|
|
Prost, A;
Colbourn, T;
Seward, N;
Azad, K;
Coomarasamy, A;
Copas, A;
Houweling, TA;
... Costello, A; + view all
(2013)
Women's groups practising participatory learning and action to improve maternal and newborn health in low-resource settings: a systematic review and meta-analysis.
Lancet
, 381
(9879)
1736 - 1746.
10.1016/S0140-6736(13)60685-6.
|
|
2012
|
Buzdugan, R;
Watadzaushe, C;
Dirawo, J;
Mundida, O;
Langhaug, L;
Willis, N;
Hatzold, K;
... Cowan, FM; + view all
(2012)
Positive attitudes to pediatric HIV testing: findings from a nationally representative survey from Zimbabwe.
PLoS One
, 7
(12)
, Article e53213. 10.1371/journal.pone.0053213.
|
|
|
Dave, SS;
Copas, A;
Richens, J;
White, RG;
Kosambiya, JK;
Desai, VK;
Stephenson, JM;
(2012)
HIV and STI prevalence and determinants among male migrant workers in India.
PLOS One
, 7
(8)
, Article e43576. 10.1371/journal.pone.0043576.
|
|
|
Prost, A;
Lakshminarayana, R;
Nair, N;
Tripathy, P;
Copas, A;
Mahapatra, R;
Rath, S;
... Costello, A; + view all
(2012)
Predictors of maternal psychological distress in rural India: a cross-sectional community-based study.
J Affect Disord
, 138
(3)
277 - 286.
10.1016/j.jad.2012.01.029.
|
|
2008
|
Stephenson, J;
Strange, V;
Allen, E;
Copas, A;
Johnson, A;
Bonell, C;
Babiker, A;
... Ripple Study Team, The; + view all
(2008)
The Long-Term Effects of a Peer-Led Sex Education Programme (RIPPLE): A Cluster Randomised Trial in Schools in England.
PLoS Medicine
, 5
(11)
, Article e224. 10.1371/journal.pmed.0050224.
|
|
2006
|
Dodds, JP;
Mercer, CH;
Mercey, DE;
Copas, AJ;
Johnson, AM;
(2006)
Men who have sex with men: a comparison of a probability sample survey and a community based study.
SEX TRANSM INFECT
, 82
(1)
86 - 87.
10.1136/sti.2005.015248.
|
|
|
Gilbart, VL;
Mercer, CH;
Dougan, S;
Copas, AJ;
Fenton, KA;
Johnson, AM;
Evans, BG;
(2006)
Factors associated with heterosexual transmission of HIV to individuals without a major risk within England, Wales, and Northern Ireland: a comparison with national probability surveys.
SEX TRANSM INFECT
, 82
(1)
15 - 20.
10.1136/sti.2004.014191.
|
|
|
Miller, RF;
Allen, E;
Copas, A;
Singer, M;
Edwards, SG;
(2006)
Improved survival for HIV infected patients with severe Pneumocystis jirovecii pneumonia is independent of highly active antiretroviral therapy.
THORAX
, 61
(8)
716 - 721.
10.1136/thx.2005.055905.
|
|
2005
|
Burns, F;
Fenton, KA;
Morison, L;
Mercer, C;
Erens, B;
Field, J;
Copas, AJ;
... Johnson, AM; + view all
(2005)
Factors associated with HIV testing among black Africans in Britain.
SEX TRANSM INFECT
, 81
(6)
494 - 500.
10.1136/sti.2004.013755.
|
|
|
Lascar, R.M.;
Lopes, A.R.;
Gilson, R.J.;
Dunn, C.;
Johnstone, R.;
Copas, A.;
Reignat, S.;
... Maini, M.K.; + view all
(2005)
Effect of HIV infection and antiretroviral therapy on hepatitis B virus (HBV)-specific T cell responses in patients who have resolved HBV infection.
The Journal of Infectious Diseases
, 191
(7)
pp. 1169-1179.
10.1086/428502.
|
|
|
Miller, RF;
Lindley, AR;
Copas, A;
Ambrose, HE;
Davies, RJO;
Wakefield, AE;
(2005)
Genotypic variation in Pneumocystis jirovecii isolates in Britain.
THORAX
, 60
(8)
679 - 682.
10.1136/thx.2004.039818.
|
|
|
Nanchahal, K;
Wellings, K;
Barrett, G;
Copas, AJ;
Mercer, CH;
Macmanus, S;
Macdowall, W;
... Johnson, AM; + view all
(2005)
Changes in the circumstances of young mothers in Britain: 1990 to 2000.
J EPIDEMIOL COMMUN H
, 59
(10)
828 - 833.
10.1136/jech.2004.026021.
|
|
|
Sadiq, S.T.;
Taylor, S.;
Copas, A.J.;
Bennett, J.;
Kaye, S.;
Drake, S.M.;
Kirk, S.;
... Weller, I.V.D.; + view all
(2005)
The effects of urethritis on seminal plasma HIV-1 RNA loads in homosexual men not receiving antiretroviral therapy.
Sexually Transmitted Infections
, 81
(2)
pp. 120-123.
10.1136/sti.2004.010249.
|
|
|
Sadiq, ST;
McSorley, J;
Copas, AJ;
Bennett, J;
Edwards, SJ;
Kaye, S;
Kirk, S;
... Weller, IVD; + view all
(2005)
The effects of early syphilis on CD4 counts and HIV-1 RNA viral loads in blood and semen.
SEX TRANSM INFECT
, 81
(5)
380 - 385.
10.1136/sti.2004.012914.
|
|
|
Ward, H;
Mercer, CH;
Wellings, K;
Fenton, K;
Erens, B;
Copas, A;
Johnson, AM;
(2005)
Who pays for sex? An analysis of the increasing prevalence of female commercial sex contacts among men in Britain.
SEX TRANSM INFECT
, 81
(6)
467 - 471.
10.1136/sti.2005.014985.
|
|
2003
|
Stephenson, JM;
Imrie, J;
Davis, MMD;
Mercer, C;
Black, S;
Copas, AJ;
Hart, GJ;
... Williams, IG; + view all
(2003)
Is use of antiretroviral therapy among homosexual men associated with increased risk of transmission of HIV infection?
SEX TRANSM INFECT
, 79
(1)
7 - 10.
|
|
2002
|
Copas, AJ;
Cowan, FM;
Cunningham, AL;
Mindel, A;
(2002)
An evidence based approach to testing for antibody to herpes simplex virus type 2.
SEX TRANSM INFECT
, 78
(6)
430 - 434.
|
|
|
Copas, AJ;
Wellings, K;
Erens, B;
Mercer, CH;
McManus, S;
Fenton, KA;
Korovessis, C;
... Johnson, AM; + view all
(2002)
The accuracy of reported sensitive sexual behaviour in Britain: exploring the extent of change 1990-2000.
SEX TRANSM INFECT
, 78
(1)
26 - 30.
|
|
2001
|
Imrie, J;
Stephenson, JR;
Cowan, FM;
Wanigaratne, S;
Billington, AJP;
Copas, AJ;
French, L;
... Behav Intervention Gay Men Project; + view all
(2001)
A cognitive behavioural intervention to reduce sexually transmitted infections among gay men: randomised trial.
BRIT MED J
, 322
(7300)
1451 - 1456.
|
|
