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Patrick Royston
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Multiple imputation using chained equations: issues and guidance for practice
IR White, P Royston, AM Wood
Statistics in medicine 30 (4), 377-399, 2011
84372011
Multiple imputation for missing data in epidemiological and clinical research: potential and pitfalls
JAC Sterne, IR White, JB Carlin, M Spratt, P Royston, MG Kenward, ...
Bmj 338, 2009
68632009
Analysis of serial measurements in medical research.
JN Matthews, DG Altman, MJ Campbell, P Royston
British medical journal 300 (6719), 230-235, 1990
35891990
Multiple imputation of missing values
P Royston
The Stata Journal 4 (3), 227-241, 2004
27222004
The cost of dichotomising continuous variables
DG Altman, P Royston
Bmj 332 (7549), 1080, 2006
25462006
Dichotomizing continuous predictors in multiple regression: a bad idea
P Royston, DG Altman, W Sauerbrei
Statistics in medicine 25 (1), 127-141, 2006
24112006
Regression using fractional polynomials of continuous covariates: parsimonious parametric modelling
P Royston, DG Altman
Journal of the Royal Statistical Society Series C: Applied Statistics 43 (3 …, 1994
21871994
What do we mean by validating a prognostic model?
DG Altman, P Royston
Statistics in medicine 19 (4), 453-473, 2000
18522000
Prognosis and prognostic research: validating a prognostic model
DG Altman, Y Vergouwe, P Royston, KGM Moons
Bmj 338, 2009
15752009
Flexible parametric proportional‐hazards and proportional‐odds models for censored survival data, with application to prognostic modelling and estimation of treatment effects
P Royston, MKB Parmar
Statistics in medicine 21 (15), 2175-2197, 2002
14772002
Prognosis and prognostic research: what, why, and how?
KGM Moons, P Royston, Y Vergouwe, DE Grobbee, DG Altman
Bmj 338, 2009
14492009
Maternal serum screening for Down's syndrome in early pregnancy.
NJ Wald, HS Cuckle, JW Densem, K Nanchahal, P Royston, T Chard, ...
British medical journal 297 (6653), 883-887, 1988
13511988
Prognosis and prognostic research: developing a prognostic model
P Royston, KGM Moons, DG Altman, Y Vergouwe
Bmj 338, 2009
13022009
Multiple imputation by chained equations (MICE): implementation in Stata
P Royston, IR White
Journal of statistical software 45, 1-20, 2011
12842011
Multivariable model-building: a pragmatic approach to regression anaylsis based on fractional polynomials for modelling continuous variables
P Royston, W Sauerbrei
John Wiley & Sons, 2008
12672008
The use of fractional polynomials to model continuous risk variables in epidemiology.
P Royston, G Ambler, W Sauerbrei
International journal of epidemiology 28 (5), 964-974, 1999
12351999
Multiple imputation of missing values: update of ice
P Royston
The Stata Journal 5 (4), 527-536, 2005
11452005
Risk prediction models: II. External validation, model updating, and impact assessment
KGM Moons, AP Kengne, DE Grobbee, P Royston, Y Vergouwe, ...
Heart 98 (9), 691-698, 2012
11362012
Prognosis and prognostic research: application and impact of prognostic models in clinical practice
KGM Moons, DG Altman, Y Vergouwe, P Royston
Bmj 338, 2009
10112009
Selection of important variables and determination of functional form for continuous predictors in multivariable model building
W Sauerbrei, P Royston, H Binder
Statistics in medicine 26 (30), 5512-5528, 2007
10012007
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