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Clémence Leyrat
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Propensity score analysis with partially observed covariates: How should multiple imputation be used?
C Leyrat, SR Seaman, IR White, I Douglas, L Smeeth, J Kim, ...
Statistical methods in medical research 28 (1), 3-19, 2019
1582019
Cluster randomized trials with a small number of clusters: which analyses should be used?
C Leyrat, KE Morgan, B Leurent, BC Kahan
International journal of epidemiology 47 (1), 321-331, 2018
1122018
Open science saves lives: lessons from the COVID-19 pandemic
L Besançon, N Peiffer-Smadja, C Segalas, H Jiang, P Masuzzo, C Smout, ...
BMC Medical Research Methodology 21 (1), 1-18, 2021
952021
Increased risk of type I errors in cluster randomised trials with small or medium numbers of clusters: a review, reanalysis, and simulation study
BC Kahan, G Forbes, Y Ali, V Jairath, S Bremner, MO Harhay, R Hooper, ...
Trials 17 (1), 438, 2016
532016
Timeline cluster: a graphical tool to identify risk of bias in cluster randomised trials
A Caille, S Kerry, E Tavernier, C Leyrat, S Eldridge, B Giraudeau
bmj 354, 2016
512016
Trimethoprim use for urinary tract infection and risk of adverse outcomes in older patients: cohort study
E Crellin, KE Mansfield, C Leyrat, D Nitsch, IJ Douglas, A Root, ...
Bmj 360, 2018
492018
Quality of reporting of pilot and feasibility cluster randomised trials: a systematic review
CL Chan, C Leyrat, SM Eldridge
BMJ open 7 (11), e016970, 2017
312017
Propensity score methods for estimating relative risks in cluster randomized trials with low‐incidence binary outcomes and selection bias
C Leyrat, A Caille, A Donner, B Giraudeau
Statistics in medicine 33 (20), 3556-3575, 2014
302014
Propensity scores used for analysis of cluster randomized trials with selection bias: a simulation study
C Leyrat, A Caille, A Donner, B Giraudeau
Statistics in medicine 32 (19), 3357-3372, 2013
302013
Reflection on modern methods: trial emulation in the presence of immortal-time bias. Assessing the benefit of major surgery for elderly lung cancer patients using observational …
C Maringe, S Benitez Majano, A Exarchakou, M Smith, B Rachet, A Belot, ...
International journal of epidemiology 49 (5), 1719-1729, 2020
282020
G-computation, propensity score-based methods, and targeted maximum likelihood estimator for causal inference with different covariates sets: a comparative simulation study
A Chatton, F Le Borgne, C Leyrat, F Gillaizeau, C Rousseau, L Barbin, ...
Scientific reports 10 (1), 1-13, 2020
242020
Does internet-accessed STI (e-STI) testing increase testing uptake for chlamydia and other STIs among a young population who have never tested? Secondary analyses of data from …
E Wilson, C Leyrat, P Baraitser, C Free
Sexually transmitted infections 95 (8), 569-574, 2019
232019
Propensity scores using missingness pattern information: a practical guide
HA Blake, C Leyrat, KE Mansfield, S Seaman, LA Tomlinson, J Carpenter, ...
Statistics in medicine 39 (11), 1641-1657, 2020
182020
Propensity score to detect baseline imbalance in cluster randomized trials: the role of the c-statistic
C Leyrat, A Caille, Y Foucher, B Giraudeau
BMC medical research methodology 16 (1), 1-13, 2016
162016
Stopping renin-angiotensin system blockers after acute kidney injury and risk of adverse outcomes: parallel population-based cohort studies in English and Swedish routine care
P Bidulka, EL Fu, C Leyrat, F Kalogirou, KSL McAllister, EJ Kingdon, ...
BMC medicine 18 (1), 1-11, 2020
152020
Intervention effect estimates in cluster randomized versus individually randomized trials: a meta-epidemiological study
C Leyrat, A Caille, S Eldridge, S Kerry, A Dechartres, B Giraudeau
International journal of epidemiology 48 (2), 609-619, 2019
152019
Dichotomizing a continuous outcome in cluster randomized trials: impact on power
A Caille, C Leyrat, B Giraudeau
Statistics in medicine 31 (24), 2822-2832, 2012
142012
MatchThem:: matching and weighting after multiple imputation
F Pishgar, N Greifer, C Leyrat, E Stuart
arXiv preprint arXiv:2009.11772, 2020
122020
Estimating treatment effects with partially observed covariates using outcome regression with missing indicators
HA Blake, C Leyrat, KE Mansfield, LA Tomlinson, J Carpenter, ...
Biometrical Journal 62 (2), 428-443, 2020
122020
A comparison of imputation strategies in cluster randomized trials with missing binary outcomes
A Caille, C Leyrat, B Giraudeau
Statistical methods in medical research 25 (6), 2650-2669, 2016
112016
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