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T. Pham · SciRah

Researcher profile · Semantic Scholar

T. Pham

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T. Pham — researcher profile on SciRah

h-index: 14
Works: 46
Citations: 1,470

Most-cited papers

Missing data and multiple imputation in clinical epidemiological research
A. Pedersen, E. Mikkelsen, D. Cronin-Fenton, N. R. Kristensen +3 more
2017Clinical Epidemiology814 citations Open access
Semantic Scholar
Ethnic Differences in the Prevalence of Type 2 Diabetes Diagnoses in the UK: Cross-Sectional Analysis of the Health Improvement Network Primary Care Database
T. Pham, J. Carpenter, T. Morris, Manuj Sharma +1 more
2019Clinical Epidemiology111 citations Open access
Semantic Scholar
Trends in dementia diagnosis rates in UK ethnic groups: analysis of UK primary care data
T. Pham, I. Petersen, K. Walters, R. Raine +3 more
2018Clinical Epidemiology108 citations Open access
Semantic Scholar
Health indicator recording in UK primary care electronic health records: key implications for handling missing data
I. Petersen, C. Welch, I. Nazareth, K. Walters +5 more
2019Clinical Epidemiology49 citations Open access
Semantic Scholar
Diagnostic route is associated with care satisfaction independently of tumour stage: Evidence from linked English Cancer Patient Experience Survey and cancer registration data.
T. Pham, M. Gomez-Cano, T. Salika, Demian Jardel +2 more
2019Cancer Epidemiology43 citations Open access
Semantic Scholar
Inequalities in receipt of mental and physical healthcare in people with dementia in the UK
C. Cooper, I. Petersen, T. Pham, J. Manthorpe +4 more
2016Age and Ageing39 citations Open access
Semantic Scholar
Early career researchers want Open Science
Andrea Farnham, Christoph F. Kurz, M. Öztürk, M. Solbiati +22 more
2017Genome Biology31 citations Open access
Semantic Scholar
Treatment estimands in clinical trials of patients hospitalised for COVID-19: ensuring trials ask the right questions
B. Kahan, T. Morris, I. White, C. Tweed +6 more
2020BMC Medicine30 citations Open access
Semantic Scholar
Missing data: issues, concepts, methods
T. Pham, Nikolaos Pandis, Ian R. White
2024Seminars in orthodontics27 citations Open access
Semantic Scholar
Missing data, part 2. Missing data mechanisms: Missing completely at random, missing at random, missing not at random, and why they matter.
T. Pham, N. Pandis, Ian R. White
2022American Journal of Orthodontics and Dentofacial Orthopedics25 citations Open access
Semantic Scholar
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
A. Herbert, Meena Rafiq, T. Pham, C. Renzi +5 more
2021PLoS Medicine25 citations Open access
Semantic Scholar
Population‐calibrated multiple imputation for a binary/categorical covariate in categorical regression models
T. Pham, J. Carpenter, T. Morris, A. Wood +1 more
2018Statistics in Medicine25 citations Open access
Semantic Scholar
How to check a simulation study
I. White, T. Pham, Matteo Quartagno, Tim P. Morris
2023International Journal of Epidemiology19 citations Open access
Semantic Scholar
Rethinking intercurrent events in defining estimands for tuberculosis trials
T. Pham, C. Tweed, James R. Carpenter, B. Kahan +6 more
2022Clinical Trials16 citations Open access
Semantic Scholar
Revisiting the Role of Investor Sentiment in the Stock Market
Q. Pham, Huy Pham, T. Pham, A. Tiwari
2025International Review of Economics & Finance15 citations Open access
Semantic Scholar
Handling Missing Values in Interrupted Time Series Analysis of Longitudinal Individual-Level Data
Juan Carlos Bazo-Alvarez, T. Morris, T. Pham, J. Carpenter +1 more
2020Clinical Epidemiology12 citations Open access
Semantic Scholar
A comparison of methods for analyzing a binary composite endpoint with partially observed components in randomized controlled trials
T. Pham, I. White, B. Kahan, T. Morris +2 more
2021Statistics in Medicine10 citations Open access
Semantic Scholar
Predictors of Postal or Online Response Mode and Associations With Patient Experience and Satisfaction in the English Cancer Patient Experience Survey
T. Pham, G. Abel, M. Gomez-Cano, G. Lyratzopoulos
2019Journal of Medical Internet Research10 citations Open access
Semantic Scholar
The marginality principle revisited: Should “higher-order” terms always be accompanied by “lower-order” terms in regression analyses
Tim P. Morris, M. van Smeden, T. Pham
2023Biometrical journal. Biometrische Zeitschrift8 citations Open access
Semantic Scholar
Estimating treatment effects in trials with outcome data truncated by death: A case study on aligning estimators with estimands
T. Pham, B. C. Kahan, Andre Lopes, Memuna Rashid +2 more
2025Clinical Trials7 citations
Semantic Scholar
Missing data, part 1. Why missing data are a problem.
T. Pham, N. Pandis, I. White
2022American Journal of Orthodontics and Dentofacial Orthopedics6 citations Open access
Semantic Scholar
Missing data, part 5. Introduction to multiple imputations.
T. Pham, N. Pandis, Ian R. White
2022American Journal of Orthodontics and Dentofacial Orthopedics6 citations
Semantic Scholar
Missing data, part 3. How to explore missing data.
T. Pham, N. Pandis, Ian R. White
2022American Journal of Orthodontics and Dentofacial Orthopedics5 citations Open access
Semantic Scholar
Weighted multiple imputation of ethnicity data that are missing not at random in primary care databases
T. Pham, I. Petersen, J. Carpenter, T. Morris
2017International Journal of Population Data Science5 citations Open access
Semantic Scholar
Statistical analysis plan for the motor neuron disease systematic multi-arm adaptive randomised trial (MND-SMART)
R. Parker, C. Weir, T. Pham, Ian R. White +6 more
2023Trials4 citations Open access
Semantic Scholar
Missing data, part 4. Missing data in the outcomes vs in the covariates.
T. Pham, N. Pandis, Ian R. White
2022American Journal of Orthodontics and Dentofacial Orthopedics4 citations Open access
Semantic Scholar
Cardiovascular outcomes of type 2 diabetic patients treated with DPP‑4 inhibitors versus sulphonylureas as add-on to metformin in clinical practice
Juan Carlos Bazo-Alvarez, Kingshuk Pal, T. Pham, I. Nazareth +2 more
2021Scientific Reports4 citations Open access
Semantic Scholar
Reliability of hospital scores for the Cancer Patient Experience Survey: analysis of publicly reported patient survey data
G. Abel, M. Gomez-Cano, T. Pham, G. Lyratzopoulos
2019BMJ Open4 citations Open access
Semantic Scholar
Missing data, part 7. Pitfalls in doing multiple imputation.
Ian R. White, N. Pandis, T. Pham
2022American Journal of Orthodontics and Dentofacial Orthopedics3 citations Open access
Semantic Scholar
Efficacy of positive psychological interventions in anxiety treatment
Vicki Jeng, T. Pham, Regina B. Baronia, C. Kahathuduwa +2 more
2022Southwest Respiratory and Critical Care Chronicles3 citations Open access
Semantic Scholar
Missing data, part 6. Choices in doing multiple imputation.
Ian R. White, N. Pandis, T. Pham
2022American Journal of Orthodontics and Dentofacial Orthopedics3 citations Open access
Semantic Scholar
Designing a response-over-continuous-intervention (ROCI) randomised trial: Implementation in the Phase 2C part (duration ranging) of the PARADIGM4TB trial
T. Pham, Angela Crook, Katie Rolfe, P. Phillips +2 more
2025Contemporary Clinical Trials2 citations Open access
Semantic Scholar
Missing data, part 8. Reporting analyses with missing data.
Ian R. White, N. Pandis, T. Pham
2023American Journal of Orthodontics and Dentofacial Orthopedics2 citations Open access
Semantic Scholar
Ethnicity recording in primary care: multiple imputation of missing data in ethnicity recording using The Health Improvement Network (THIN) database
T. Pham, T. Morris, I. Petersen
20152 citations
Semantic Scholar
When do composite estimands answer non-causal questions?
B. Kahan, T. Pham, Conor D. Tweed, Tim P. Morris
20251 citations
Semantic Scholar
Comment on Oberman & Vink: Should we fix or simulate the complete data in simulation studies evaluating missing data methods?
Tim P. Morris, I. White, S. Cro, Jonathan W. Bartlett +2 more
2023Biometrical journal. Biometrische Zeitschrift1 citations
Semantic Scholar
O1‐05‐06: DEMENTIA DIAGNOSIS AND CARE IN UK ETHNIC GROUPS: INVESTIGATING INEQUALITIES IN UK PRIMARY CARE DATA
M. Jones, T. Pham, I. Petersen, K. Walters +4 more
20181 citations
Semantic Scholar
Early career researchers want Open Science
A. Farnham, Christoph F. Kurz, M. Öztürk, M. Solbiati +22 more
2017Genome Biology1 citations Open access
Semantic Scholar
Tools to help patients and other stakeholders’ input into choice of intercurrent event strategy for estimands in randomised trials
Joanna Hindley, Charlotte Hartley, Jennifer L. Hellier, K. Sturgeon +9 more
2026Trials0 citations Open access
Semantic Scholar
Tools to help patients and other stakeholders'input into choice of estimand and intercurrent event strategy in randomised trials
Joanna Hindley, Charlotte Hartley, Jennifer L. Hellier, K. Sturgeon +9 more
20260 citations
Semantic Scholar
Standardising management of consent withdrawal and other clinical trial participation changes: The UKCRC Registered Clinical Trials Unit Network’s PeRSEVERE project
William J. Cragg, L. Clifton-Hadley, J. Dearling, Susan J. Dutton +16 more
2025Clinical Trials0 citations Open access
Semantic Scholar
Efficacy of positive psychological interventions in anxiety treatment
Vicki Jeng, T. Pham, R. Baronia, C. Kahathuduwa +2 more
20220 citations
Semantic Scholar
CLEP_A_266428 1045..1057
T. Morris, T. Pham, J. Carpenter, I. Petersen
20200 citations
Semantic Scholar
Diagnostic route is associated with care satisfaction independently of tumour stage: evidence from linked English Cancer Patient Experience and cancer registration data
T. Pham, G. Abel, G. Lyratzopoulos, M. Gomez-Cano
20200 citations
Semantic Scholar
Exploring strategies for incorporating population-level external information in multiple imputation of missing data
T. Pham
20180 citations
Semantic Scholar
MI_IMPUTE_WLOGIT: Stata module to perform weighted multiple imputation for binary/categorical variables
T. Pham
20160 citations
Semantic Scholar

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