Browse by UCL people
Group by: Type | Date
Number of items: 28.
Article
Abel, GA;
Gomez-Cano, M;
Pham, TM;
Lyratzopoulos, G;
(2019)
Reliability of hospital scores for the Cancer Patient Experience Survey: analysis of publicly reported patient survey data.
BMJ Open
, 9
(7)
, Article e029037. 10.1136/bmjopen-2019-029037.
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Bazo-Alvarez, JC;
Pal, K;
Pham, TM;
Nazareth, I;
Petersen, I;
Sharma, M;
(2021)
Cardiovascular outcomes of type 2 diabetic patients treated with DPP‑4 inhibitors versus sulphonylureas as add-on to metformin in clinical practice.
Scientific Reports
, 11
, Article 23826. 10.1038/s41598-021-02670-9.
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Bazo-Alvarez, JC;
Morris, TP;
Pham, TM;
Carpenter, JR;
Petersen, I;
(2020)
Handling Missing Values in Interrupted Time Series Analysis of Longitudinal Individual-Level Data.
Clinical Epidemiology
, 12
pp. 1045-1057.
10.2147/clep.s266428.
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Cragg, William J;
Clifton-Hadley, Laura;
Dearling, Jeremy;
Dutton, Susan J;
Gillies, Katie;
Hardy, Pollyanna;
Hind, Daniel;
... Verghis, Rejina; + view all
(2025)
Standardising management of consent withdrawal and other clinical trial participation changes: The UKCRC Registered Clinical Trials Unit Network’s PeRSEVERE project.
Clinical Trials
10.1177/17407745251344524.
(In press).
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Farnham, A;
Kurz, C;
Öztürk, MA;
Solbiati, M;
Myllyntaus, O;
Meekes, J;
Pham, TM;
... Hettne, K; + view all
(2017)
Early career researchers want Open Science.
Genome Biology
, 18
, Article 221. 10.1186/s13059-017-1351-7.
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Herbert, A;
Rafiq, M;
Pham, TM;
Renzi, C;
Abel, GA;
Price, S;
Hamilton, W;
... Lyratzopoulos, G; + view all
(2021)
Predictive values for different cancers and inflammatory bowel disease of 6 common abdominal symptoms among more than 1.9 million primary care patients in the UK: A cohort study.
PLoS Medicine
, 18
(8)
, Article e1003708. 10.1371/journal.pmed.1003708.
(In press).
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Kahan, BC;
Morris, TP;
White, IR;
Tweed, CD;
Cro, S;
Dahly, D;
Pham, TM;
... Carpenter, JR; + view all
(2020)
Treatment estimands in clinical trials of patients hospitalised for COVID-19: ensuring trials ask the right questions.
BMC Medicine
, 18
(1)
, Article 286. 10.1186/s12916-020-01737-0.
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Parker, RA;
Weir, CJ;
Pham, TM;
White, IR;
Stallard, N;
Parmar, MKB;
Swingler, RJ;
... Chandran, S; + view all
(2023)
Statistical analysis plan for the motor neuron disease systematic multi-arm adaptive randomised trial (MND-SMART).
Trials
, 24
(1)
, Article 29. 10.1186/s13063-022-07007-z.
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Pedersen, AB;
Mikkelsen, EM;
Cronin-Fenton, D;
Kristensen, NR;
Tra, MP;
Pedersen, L;
Petersen, I;
(2017)
Missing data and multiple imputation in clinical epidemiological research.
Clinical Epidemiology
, 9
pp. 157-165.
10.2147/CLEP.S129785.
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Petersen, I;
Welch, CA;
Nazareth, I;
Walters, K;
Marston, L;
Morris, RW;
Carpenter, JR;
... Pham, TM; + view all
(2019)
Health indicator recording in UK primary care electronic health records: key implications for handling missing data.
Clinical Epidemiology
, 2019
(11)
pp. 157-167.
10.2147/CLEP.S191437.
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Pham, TM;
Pandis, N;
White, IR;
(2022)
Missing data, part 1. Why missing data are a problem.
American Journal of Orthodontics and Dentofacial Orthopedics
, 161
(6)
pp. 888-889.
10.1016/j.ajodo.2022.02.006.
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Pham, TM;
White, IR;
Kahan, BC;
Morris, TP;
Stanworth, SJ;
Forbes, G;
(2021)
A comparison of methods for analyzing a binary composite endpoint with partially observed components in randomized controlled trials.
Statistics in Medicine
10.1002/sim.9203.
(In press).
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Pham, Tra My;
Crook, Angela M;
Rolfe, Katie;
Phillips, Patrick PJ;
Dufault, Suzanne M;
Quartagno, Matteo;
(2025)
Designing a response-over-continuous-interventions (ROCI) randomised trial: Implementation in the phase 2C part (duration ranging) of the PARADIGM4TB trial.
Contemporary Clinical Trials
, Article 108002. 10.1016/j.cct.2025.108002.
(In press).
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Pham, Tra My;
Pandis, Nikolaos;
White, Ian R;
(2024)
Missing data: issues, concepts, methods.
Seminars in Orthodontics
, 30
(1)
pp. 37-44.
10.1053/j.sodo.2024.01.007.
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Pham, Tra My;
Pandis, Nikolaos;
White, Ian R;
(2022)
Missing data, part 4. Missing data in the outcomes vs in the covariates.
American Journal of Orthodontics and Dentofacial Orthopedics
, 162
(3)
pp. 432-433.
10.1016/j.ajodo.2022.06.001.
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Pham, Tra My;
Pandis, Nikolaos;
White, Ian R;
(2022)
Missing data, part 3. How to explore missing data.
American Journal of Orthodontics and Dentofacial Orthopedics
, 162
(2)
pp. 282-283.
10.1016/j.ajodo.2022.05.002.
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Pham, Tra My;
Pandis, Nikolaos;
White, Ian R;
(2022)
Missing data, part 2. Missing data mechanisms: Missing completely at random, missing at random, missing not at random, and why they matter.
American Journal of Orthodontics and Dentofacial Orthopedics
, 162
(1)
pp. 138-139.
10.1016/j.ajodo.2022.04.001.
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Pham, Tra My;
Tweed, Conor D;
Carpenter, James R;
Kahan, Brennan C;
Nunn, Andrew J;
Crook, Angela M;
Esmail, Hanif;
... White, Ian R; + view all
(2022)
Rethinking intercurrent events in defining estimands for tuberculosis trials.
Clinical Trials
10.1177/17407745221103853.
(In press).
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Pham, T;
Abel, G;
Gomez-Cano, M;
Lyratzopoulos, G;
(2019)
Predictors of postal or online response mode and associations with patient experience and satisfaction in the English Cancer Patient Experience Survey.
Journal of Medical Internet Research
, 21
(5)
, Article e11855. 10.2196/11855.
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Pham, T;
Abel, G;
Lyratzopoulos, G;
Gomez-Cano, M;
(2020)
Diagnostic route is associated with care satisfaction independently of tumour stage: evidence from linked English Cancer Patient Experience and cancer registration data.
Cancer Epidemiology
, 61
pp. 70-78.
10.1016/j.canep.2019.04.011.
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Pham, TM;
Carpenter, JR;
Morris, TP;
Sharma, M;
Petersen, I;
(2019)
Ethnic Differences in the Prevalence of Type 2 Diabetes Diagnoses in the UK: Cross-Sectional Analysis of the Health Improvement Network Primary Care Database.
Clinical Epidemiology
pp. 1081-1088.
10.2147/clep.s227621.
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Pham, TM;
Carpenter, JR;
Morris, TP;
Wood, AM;
Petersen, I;
(2019)
Population-calibrated Multiple Imputation for a Binary/categorical Covariate in Categorical Regression Models.
Statistics in Medicine
, 38
(5)
pp. 792-808.
10.1002/sim.8004.
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Pham, TM;
Petersen, I;
Walters, K;
Raine, R;
Manthorpe, J;
Mukadam, N;
Cooper, C;
(2018)
Trends in dementia diagnosis rates in UK ethnic groups: analysis of UK primary care data.
Clinical Epidemiology
, 10
pp. 949-960.
10.2147/CLEP.S152647.
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White, Ian R;
Pandis, Nikolaos;
Pham, Tra My;
(2023)
Missing data, part 8. Reporting analyses with missing data.
American Journal of Orthodontics and Dentofacial Orthopedics
, 163
(1)
pp. 139-140.
10.1016/j.ajodo.2022.10.001.
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White, Ian R;
Pandis, Nikolaos;
Pham, Tra My;
(2022)
Missing data, part 7. Pitfalls in doing multiple imputation.
American Journal of Orthodontics and Dentofacial Orthopedics
, 162
(6)
pp. 975-977.
10.1016/j.ajodo.2022.08.013.
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White, Ian R;
Pandis, Nikolaos;
Pham, Tra My;
(2022)
Missing data, part 6. Choices in doing multiple imputation.
American Journal of Orthodontics and Dentofacial Orthopedics
, 162
(5)
pp. 795-797.
10.1016/j.ajodo.2022.08.004.
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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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Thesis
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Pham, TM;
(2018)
Exploring strategies for incorporating population-level external information in multiple imputation of missing data.
Doctoral thesis (Ph.D), UCL (University College London).
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