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T. Morris · SciRah

Researcher profile · Semantic Scholar

T. Morris

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T. Morris — researcher profile on SciRah

h-index: 38
Works: 113
Citations: 6,564

Most-cited papers

Using simulation studies to evaluate statistical methods
T. Morris, I. White, M. Crowther
2017Statistics in Medicine1,396 citations Open access
Semantic Scholar
Tuning multiple imputation by predictive mean matching and local residual draws
T. Morris, I. White, P. Royston
2014BMC Medical Research Methodology521 citations Open access
Semantic Scholar
The risks and rewards of covariate adjustment in randomized trials: an assessment of 12 outcomes from 8 studies
B. Kahan, V. Jairath, C. Doré, T. Morris
2014Trials461 citations Open access
Semantic Scholar
Improper analysis of trials randomised using stratified blocks or minimisation
B. Kahan, T. Morris
2012Statistics in Medicine321 citations
Semantic Scholar
Statistical review of Effect of Dexamethasone in Hospitalized Patients with COVID-19 – Preliminary Report
T. Morris, D. Dahly, Kerry Hood, S. Gates
2020302 citations
Semantic Scholar
Sensitivity analysis for clinical trials with missing continuous outcome data using controlled multiple imputation: A practical guide
S. Cro, T. Morris, M. Kenward, J. Carpenter
2020Statistics in Medicine163 citations Open access
Semantic Scholar
Non-inferiority trials: are they inferior? A systematic review of reporting in major medical journals
S. Rehal, T. Morris, K. Fielding, J. Carpenter +1 more
2016BMJ Open144 citations Open access
Semantic Scholar
Prediction meets causal inference: the role of treatment in clinical prediction models
N. van Geloven, S. Swanson, Chava L. Ramspek, K. Luijken +6 more
2020European Journal of Epidemiology117 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
Internet-accessed sexually transmitted infection (e-STI) testing and results service: A randomised, single-blind, controlled trial
E. Wilson, C. Free, T. Morris, Jonathan Syred +6 more
2017PLoS Medicine110 citations Open access
Semantic Scholar
Assessing potential sources of clustering in individually randomised trials
B. Kahan, T. Morris
2013BMC Medical Research Methodology99 citations Open access
Semantic Scholar
Analysis of multicentre trials with continuous outcomes: when and how should we account for centre effects?
B. Kahan, T. Morris
2013Statistics in Medicine90 citations Open access
Semantic Scholar
Multiple Imputation of Covariates by Substantive-model Compatible Fully Conditional Specification
J. Bartlett, T. Morris
201588 citations Open access
Semantic Scholar
Multiple Imputation and its Application 2e
J. Carpenter, M. Kenward, J. Bartlett, T. Morris +2 more
202382 citations
Semantic Scholar
Planning a method for covariate adjustment in individually randomised trials: a practical guide
T. Morris, A. Walker, E. Williamson, Ian R. White
2021Trials78 citations Open access
Semantic Scholar
Phases of methodological research in biostatistics—Building the evidence base for new methods
Georg Heinze, A. Boulesteix, M. Kammer, T. Morris +1 more
2022Biometrical journal. Biometrische Zeitschrift75 citations Open access
Semantic Scholar
An exploration of patients’ expectation of and satisfaction with surgical outcome
A. Mcgregor, C. Doré, T. Morris
2013European spine journal74 citations Open access
Semantic Scholar
Choosing sensitivity analyses for randomised trials: principles
T. Morris, B. Kahan, I. White
2014BMC Medical Research Methodology69 citations Open access
Semantic Scholar
Introduction to statistical simulations in health research
A. Boulesteix, R. Groenwold, M. Abrahamowicz, H. Binder +6 more
2020BMJ Open64 citations Open access
Semantic Scholar
Multiple imputation of multiple multi-item scales when a full imputation model is infeasible
Catrin O. Plumpton, T. Morris, D. Hughes, I. White
2016BMC Research Notes63 citations Open access
Semantic Scholar
A comparison of methods to adjust for continuous covariates in the analysis of randomised trials
B. Kahan, Helen Rushton, T. Morris, R. Daniel
2016BMC Medical Research Methodology61 citations Open access
Semantic Scholar
Reference-based sensitivity analysis via multiple imputation for longitudinal trials with protocol deviation
S. Cro, T. Morris, M. Kenward, J. Carpenter
2016The Stata Journal61 citations Open access
Semantic Scholar
Estimands in published protocols of randomised trials: urgent improvement needed
B. Kahan, T. Morris, I. White, James R. Carpenter +1 more
2021Trials53 citations Open access
Semantic Scholar
How are missing data in covariates handled in observational time-to-event studies in oncology? A systematic review
O. Carroll, T. Morris, R. Keogh
2020BMC Medical Research Methodology49 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
Proposals on Kaplan–Meier plots in medical research and a survey of stakeholder views: KMunicate
T. Morris, C. Jarvis, William J. Cragg, P. Phillips +2 more
2019BMJ Open49 citations Open access
Semantic Scholar
Combining fractional polynomial model building with multiple imputation
T. Morris, I. White, J. Carpenter, S. Stanworth +1 more
2015Statistics in Medicine49 citations Open access
Semantic Scholar
How do you design randomised trials for smaller populations? A framework
M. Parmar, M. Sydes, T. Morris
2016BMC Medicine48 citations Open access
Semantic Scholar
A four-step strategy for handling missing outcome data in randomised trials affected by a pandemic
S. Cro, T. Morris, B. Kahan, V. Cornelius +1 more
2020BMC Medical Research Methodology47 citations Open access
Semantic Scholar
Two-stage or not two-stage? That is the question for IPD meta-analysis projects
R. Riley, J. Ensor, M. Hattle, K. Papadimitropoulou +1 more
2023Research Synthesis Methods46 citations Open access
Semantic Scholar
Knowledge of pelvic floor problems: a study of third trimester, primiparous women
Aideen T. O’Neill, J. Hockey, P. O'Brien, A. Williams +4 more
2016International Urogynecology Journal41 citations Open access
Semantic Scholar
Adjusting for multiple prognostic factors in the analysis of randomised trials
B. Kahan, T. Morris
2013BMC Medical Research Methodology40 citations Open access
Semantic Scholar
A comparison of covariate adjustment approaches under model misspecification in individually randomized trials
M. S. Tackney, T. Morris, Ian R. White, C. Leyrat +2 more
2022Trials39 citations Open access
Semantic Scholar
Meta‐analysis of Gaussian individual patient data: Two‐stage or not two‐stage?
T. Morris, D. Fisher, M. Kenward, J. Carpenter
2018Statistics in Medicine38 citations Open access
Semantic Scholar
Multiple imputation for an incomplete covariate that is a ratio
T. Morris, I. White, P. Royston, S. Seaman +1 more
2013Statistics in Medicine35 citations Open access
Semantic Scholar
Exploring the impact of selection bias in observational studies of COVID-19: a simulation study
L. Millard, A. Fernández-Sanlés, A. Carter, Rachael A. Hughes +9 more
2022International Journal of Epidemiology34 citations Open access
Semantic Scholar
The Hazards of Period Specific and Weighted Hazard Ratios
J. Bartlett, T. Morris, M. Stensrud, R. Daniel +2 more
2020Statistics in Biopharmaceutical Research33 citations Open access
Semantic Scholar
Multiple imputation in Cox regression when there are time‐varying effects of covariates
R. Keogh, T. Morris
2017Statistics in Medicine33 citations Open access
Semantic Scholar
A re-randomisation design for clinical trials
B. Kahan, A. Forbes, C. Doré, T. Morris
2015BMC Medical Research Methodology32 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
Effects of long-term antipsychotics treatment on body weight: A population-based cohort study
Juan Carlos Bazo-Alvarez, T. Morris, J. Carpenter, J. Hayes +1 more
2019Journal of Psychopharmacology29 citations Open access
Semantic Scholar
Individual participant data meta‐analysis of continuous outcomes: A comparison of approaches for specifying and estimating one‐stage models
A. Legha, R. Riley, J. Ensor, K. Snell +2 more
2018Statistics in Medicine29 citations Open access
Semantic Scholar
One‐stage individual participant data meta‐analysis models for continuous and binary outcomes: Comparison of treatment coding options and estimation methods
R. Riley, A. Legha, D. Jackson, T. Morris +4 more
2020Statistics in Medicine27 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
Sensitivity analysis in clinical trials: three criteria for a valid sensitivity analysis
S. Parpia, T. Morris, Mark R. Phillips, C. Wykoff +13 more
2022Eye24 citations Open access
Semantic Scholar
It's time! Ten reasons to start replicating simulation studies
A. Lohmann, O. L. O. Astivia, T. Morris, R. Groenwold
2022Frontiers in Epidemiology23 citations Open access
Semantic Scholar
On the mixed-model analysis of covariance in cluster-randomized trials
Bing-Kai Wang, M. Harhay, Jia-Qi Tong, Dylan S. Small +2 more
2021Statistical Science23 citations Open access
Semantic Scholar
A scoping methodological review of simulation studies comparing statistical and machine learning approaches to risk prediction for time-to-event data
Hayley Smith, M. Sweeting, T. Morris, M. Crowther
2022Diagnostic and Prognostic Research22 citations Open access
Semantic Scholar
FUNCTION AFTER SPINAL TREATMENT, EXERCISE AND REHABILITATION (FASTER): A FACTORIAL RANDOMISED TRIAL TO DETERMINE WHETHER THE FUNCTIONAL OUTCOME OF SPINAL SURGERY CAN BE IMPROVED
A. Mcgregor, C. Doré, T. Morris, Stephen Morris +1 more
201817 citations
Semantic Scholar
Visualising harms in publications of randomised controlled trials: consensus and recommendations
R. Phillips, S. Cro, G. Wheeler, S. Bond +21 more
2022British medical journal16 citations Open access
Semantic Scholar

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