Browse by UCL people
Group by: Type | Date
Number of items: 43.
2025
Bouche, Gauthier;
Gilbert, Duncan;
Quartagno, Matteo;
Dehbi, Hakim-Moulay;
Merrick, Sophie;
Barjesteh van Waalwijk van Doorn-Khosrovani, Sahar;
Stephens, Richard;
... Langley, Ruth E; + view all
(2025)
Determining the optimal use of approved drugs in oncology.
The Lancet Oncology
, 26
(5)
e282-e294.
10.1016/S1470-2045(25)00037-3.
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Broer, S. D. Lana;
White, Ian R;
Morris, Tim P;
Weir, Isabelle R;
Fiocco, Marta;
Quartagno, Matteo;
(2025)
Summary measures in non-inferiority clinical trials with a time-to-event outcome: an empirical comparison of power.
Summary measures in non-inferiority clinical trials with a time-to-event outcome: an empirical comparison of power
, 25
, Article 139. 10.1186/s12874-025-02576-4.
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Cornelius, Victoria R;
Elkes, Jack;
White, Ian R;
Turner, Rebecca M;
Clements, Michelle;
Quartagno, Matteo;
Tweed, Conor D;
... Cro, Suzie; + view all
(2025)
A Bayesian framework to evaluate non-inferiority in randomised controlled trials of uncommon conditions.
Journal of Clinical Epidemiology
, Article 112002. 10.1016/j.jclinepi.2025.112002.
(In press).
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Zhang, Willi;
Tynelius, Per;
Mathur, Maya B;
Quartagno, Matteo;
Brandén, Gunnar;
Liljeros, Fredrik;
Kosidou, Kyriaki;
(2025)
Temporal Trends in Sexual Identity and Sociodemographic Disparities in Stockholm, Sweden, 2010–2021.
American Journal of Public Health
e1-e10.
10.2105/AJPH.2025.308202.
(In press).
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2024
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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.
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Yeap, Bu B;
Marriott, Ross J;
Dwivedi, Girish;
Adams, Robert J;
Antonio, Leen;
Ballantyne, Christie M;
Bauer, Douglas C;
... Murray, Kevin; + view all
(2024)
Associations of Testosterone and Related Hormones With All-Cause and Cardiovascular Mortality and Incident Cardiovascular Disease in Men : Individual Participant Data Meta-analyses.
Annals of Internal Medicine
10.7326/M23-2781.
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2023
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Ghorani, E;
Quartagno, M;
Blackhall, F;
Gilbert, DC;
O'Brien, M;
Ottensmeier, C;
Pizzo, E;
... on behalf of the REFINE-Lung, Investigators; + view all
(2023)
REFINE-Lung implements a novel multi-arm randomised trial design to address possible immunotherapy overtreatment.
The Lancet Oncology
, 24
(5)
e219-e227.
10.1016/S1470-2045(23)00095-5.
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Kuah, Chii Yang;
Monfries, Robert;
Quartagno, Matteo;
Seckl, Michael J;
Ghorani, Ehsan;
(2023)
What is the optimal duration, dose and frequency for anti-PD1 therapy of non-small cell lung cancer?
Therapeutic Advances in Medical Oncology
, 15
pp. 1-13.
10.1177/17588359231210271.
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Marriott, Ross J;
Murray, Kevin;
Adams, Robert J;
Antonio, Leen;
Ballantyne, Christie M;
Bauer, Douglas C;
Bhasin, Shalender;
... Yeap, Bu B; + view all
(2023)
Factors Associated With Circulating Sex Hormones in Men: Individual Participant Data Meta-analyses.
Annals of Internal Medicine
, 176
(9)
pp. 1221-1234.
10.7326/m23-0342.
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Quartagno, Matteo;
Chan, Man;
Turkova, Anna;
Ford, Deborah;
White, Ian R;
(2023)
The Smooth Away From Expected (SAFE) non-inferiority frontier: theory and implementation with an application to the D3 trial.
Trials
, 24
(1)
, Article 556. 10.1186/s13063-023-07586-5.
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Quartagno, Matteo;
Morris, Tim;
Gilbert, Duncan;
Langley, Ruth;
Nankivell, Matt;
Parmar, Mahesh;
White, ian;
(2023)
A comparison of different population-level summary measures for randomised trials with time-to-event outcomes, with a focus on non-inferiority trials.
Clinical Trials
(In press).
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Turner, Rebecca M;
Clements, Michelle N;
Quartagno, Matteo;
Cornelius, Victoria;
Cro, Suzie;
Ford, Deborah;
Tweed, Conor D;
... White, Ian R; + view all
(2023)
Practical approaches to Bayesian sample size determination in non-inferiority trials with binary outcomes.
Statistics in Medicine
10.1002/sim.9661.
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White, Ian R;
Pham, Tra My;
Quartagno, Matteo;
Morris, Tim P;
(2023)
How to check a simulation study.
International Journal of Epidemiology
10.1093/ije/dyad134.
(In press).
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2022
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Quartagno, Matteo;
Carpenter, James R;
(2022)
Substantive model compatible multilevel multiple imputation: A joint modeling approach.
Statistics in Medicine
, 41
(25)
pp. 5000-5015.
10.1002/sim.9549.
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The CIPHER Global Collaboration;
Quartagno, M;
(2022)
Growth and CD4 patterns of adolescents living with perinatally acquired HIV worldwide, a CIPHER cohort collaboration analysis.
Journal of the International AIDS Society
, 25
(3)
, Article e25871. 10.1002/jia2.25871.
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2021
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Gachau, S;
Njeru Njagi, E;
Owuor, N;
Mwaniki, P;
Quartagno, M;
Sarguta, R;
English, M;
(2021)
Handling missing data in a composite outcome with partially observed components: Simulation study based on clustered paediatric routine data.
Journal of Applied Statistics
10.1080/02664763.2021.1895087.
(In press).
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Gupta, RK;
Harrison, EM;
Ho, A;
Docherty, AB;
Knight, SR;
van Smeden, M;
Abubakar, I;
... ISARIC4C Investigators; + view all
(2021)
Development and validation of the ISARIC 4C Deterioration model for adults hospitalised with COVID-19: a prospective cohort study.
The Lancet Respiratory Medicine
10.1016/S2213-2600(20)30559-2.
(In press).
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Li, Z;
Quartagno, M;
Boerhinger, S;
Van Geloven, N;
(2021)
Choosing and changing the analysis scale in non-inferiority trials with a binary outcome.
Clinical Trials
10.1177/17407745211053790.
(In press).
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Quartagno, M;
Morris, TP;
White, IR;
(2021)
Why restricted mean survival time methods are especially useful for non-inferiority trials.
Clinical Trials
, Article ARTN 174. 10.1177/17407745211045124.
(In press).
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Smith, MJ;
Belot, A;
Quartagno, M;
Luque Fernandez, MA;
Bonaventure, A;
Gachau, S;
Benitez Majano, S;
... Njagi, EN; + view all
(2021)
Excess Mortality by Multimorbidity, Socioeconomic, and Healthcare Factors, amongst Patients Diagnosed with Diffuse Large B-Cell or Follicular Lymphoma in England.
Cancers
, 13
(22)
, Article 5805. 10.3390/cancers13225805.
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Smith, MJ;
Luque Fernandez, MA;
Belot, A;
Quartagno, M;
Bonaventure, A;
Majano, SB;
Rachet, B;
(2021)
Investigating the inequalities in route to diagnosis amongst patients with diffuse large B-cell or follicular lymphoma in England.
British Journal of Cancer
10.1038/s41416-021-01523-6.
(In press).
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Walker, J;
Mulick, A;
Magill, N;
Symeonides, S;
Gourley, C;
Burke, K;
Belot, A;
... Sharpe, M; + view all
(2021)
Major depression and survival in people with cancer.
Psychosomatic Medicine
, 83
(5)
pp. 410-416.
10.1097/PSY.0000000000000942.
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2020
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Berger, N;
Lewis, D;
Quartagno, M;
Njagi, EN;
Cummins, S;
(2020)
Longitudinal associations between neighbourhood trust, social support and physical activity in adolescents: evidence from the Olympic Regeneration in East London (ORiEL) study.
Journal of Epidemiology and Community Health
10.1136/jech-2019-213412.
(In press).
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Gachau, S;
Quartagno, M;
Njagi, EN;
Owuor, N;
English, M;
Ayieko, P;
(2020)
Handling missing data in modelling quality of clinician-prescribed routine care: Sensitivity analysis of departure from missing at random assumption.
Statistical Methods in Medical Research
10.1177/0962280220918279.
(In press).
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Gupta, RK;
Marks, M;
Samuels, THA;
Luintel, A;
Rampling, T;
Chowdhury, H;
Quartagno, M;
... Noursadeghi, M; + view all
(2020)
Systematic evaluation and external validation of 22 prognostic models among hospitalised adults with COVID-19: An observational cohort study.
European Respiratory Journal
, 56
(6)
, Article 2003498. 10.1183/13993003.03498-2020.
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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.
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Huque, MH;
Moreno-Betancur, M;
Quartagno, M;
Simpson, JA;
Carlin, JB;
Lee, KJ;
(2020)
Multiple imputation methods for handling incomplete longitudinal and clustered data where the target analysis is a linear mixed effects model.
Biometrical Journal
, 62
(2)
, Article ISCB ASC 2018. 10.1002/bimj.201900051.
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Quartagno, M;
Carpenter, JR;
Walker, AS;
Clements, M;
Parmar, MKB;
(2020)
The DURATIONS randomised trial design: Estimation targets, analysis methods and operating characteristics.
Clinical Trials
10.1177/1740774520944377.
(In press).
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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.
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Walker, J;
Mulick, A;
Magill, N;
Symeonides, S;
Sharp, M;
Gourley, C;
Quartagno, M;
... Frost, C; + view all
(2020)
Different independent associations of depression and anxiety with survival in patients with cancer.
Journal of Psychosomatic Research
, 138
, Article 110218. 10.1016/j.jpsychores.2020.110218.
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2019
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Berger, N;
Lewis, D;
Quartagno, M;
Njagi, EN;
Cummins, S;
(2019)
Longitudinal associations between perceptions of the neighbourhood environment and physical activity in adolescents: evidence from the Olympic Regeneration in East London (ORiEL) study.
BMC Public Health
, 19
, Article 1760. 10.1186/s12889-019-8003-7.
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Berger, N;
Lewis, D;
Quartagno, M;
Njagi, EN;
Cummins, S;
(2019)
Associations between school and neighbourhood ethnic density and physical activity in adolescents: evidence from the Olympic Regeneration in East London (ORiEL) study.
Social Science & Medicine
, 237
, Article 112426. 10.1016/j.socscimed.2019.112426.
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Dennis, ML;
Benova, L;
Abuya, T;
Quartagno, M;
Bellows, B;
Campbell, OMR;
(2019)
Initiation and continuity of maternal healthcare: examining the role of vouchers and user-fee removal on maternal health service use in Kenya.
Health Policy and Planning
, Article czz004. 10.1093/heapol/czz004.
(In press).
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Quartagno, M;
Carpenter, JR;
(2019)
Multiple imputation for discrete data: Evaluation of the joint latent normal model.
Biometrical Journal
, 61
(4)
pp. 1003-1019.
10.1002/bimj.201800222.
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Quartagno, M;
De Stavola, B;
Emsley, R;
Carpenter, JR;
(2019)
Secondary re-analysis of the FEAST trial.
[Letter].
The Lancet Respiratory Medicine
, 7
(10)
e30-e30.
10.1016/S2213-2600(19)30270-X.
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Quartagno, M;
De Stavola, B;
Emsley, R;
Carpenter, JR;
(2019)
Effects of saline or albumin fluid bolus in resuscitation: major statistical flaws in the re-analysis of the FEAST trial.
The Lancet Respiratory Medicine
, 7
(7)
pp. 581-593.
10.1016/S2213-2600(19)30114-6.
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Quartagno, M;
Goldstein, H;
Carpenter, JR;
(2019)
Multiple Imputation with survey weights: a multilevel approach.
Journal of Survey Statistics and Methodology
, Article smz036. 10.1093/jssam/smz036.
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Quartagno, M;
Grund, S;
Carpenter, J;
(2019)
jomo: A Flexible Package for Two-level Joint Modelling Multiple Imputation.
R Journal
, 9
(1)
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2018
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Dennis, ML;
Abuya, T;
Campbell, OMR;
Benova, L;
Baschieri, A;
Quartagno, M;
Bellows, B;
(2018)
Evaluating the impact of a maternal health voucher programme on service use before and after the introduction of free maternity services in Kenya: a quasi-experimental study.
BMJ Global Health
, 3
(2)
, Article e000726. 10.1136/bmjgh-2018-000726.
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Quartagno, M;
Carpenter, J;
(2018)
Multilevel Multiple Imputation in presence of interactions, non-linearities and random slopes.
In:
SIS2018: 49th Scientific Meeting of the Italian Statistical Society.
(pp. pp. 175-182).
: Palermo, Italy.
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Quartagno, M;
Walker, AS;
Carpenter, J;
Phillips, P;
Parmar, M;
(2018)
Rethinking non-inferiority: a practical trial design for optimising treatment duration.
Clinical Trials
, 15
(5)
pp. 477-488.
10.1177/1740774518778027.
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White, IR;
Audigier, V;
Jolani, S;
Debray, T;
Quartagno, M;
Carpenter, J;
van Buuren, S;
(2018)
Multiple imputation for multilevel data with continuous and binary variables.
Statistical Science
, 33
(2)
pp. 160-183.
10.1214/18-STS646.
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2016
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Quartagno, M;
Carpenter, JR;
(2016)
Multiple imputation for IPD meta-analysis: allowing for heterogeneity and studies with missing covariates.
Statistics in Medicine
, 35
(17)
pp. 2938-2954.
10.1002/sim.6837.
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