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Articles by author Patrick Royston

Power and sample-size analysis for the Royston–Parmar combined test in clinical trials with a time-to-event outcome: Correction and program update
P. Royston. 2018.
Stata Journal Volume 18 Number 4.
Power and sample-size analysis for the Royston–Parmar combined test in clinical trials with a time-to-event outcome
P. Royston. 2018.
Stata Journal Volume 18 Number 1.
Reconstructing time-to-event data from published Kaplan–Meier curves
Y. Wei and P. Royston. 2017.
Stata Journal Volume 17 Number 4.
Model selection for univariable fractional polynomials
P. Royston. 2017.
Stata Journal Volume 17 Number 3.
A combined test for a generalized treatment effect in clinical trials with a time-to-event outcome
P. Royston. 2017.
Stata Journal Volume 17 Number 2.
mfpa: Extension of mfp using the ACD covariate transformation for enhanced parametric multivariable modeling
P. Royston and W. Sauerbrei. 2016.
Stata Journal Volume 16 Number 1.
Estimating the treatment effect in a clinical trial using difference in restricted mean survival time
P. Royston. 2015.
Stata Journal Volume 15 Number 4.
A menu-driven facility for sample-size calculation in multiarm, multistage randomized controlled trials with time-to-event outcomes: Update
D. J. Bratton, B. Choodari-Oskooei, and P. Royston. 2015.
Stata Journal Volume 15 Number 2.
Tools for checking calibration of a Cox model in external validation: Prediction of population-averaged survival curves based on risk groups
P. Royston. 2015.
Stata Journal Volume 15 Number 1.
Tools for checking calibration of a Cox model in external validation: Approach based on individual event probabilities
P. Royston. 2014.
Stata Journal Volume 14 Number 4.
A smooth covariate rank transformation for use in regression models with a sigmoid dose–response function
P. Royston. 2014.
Stata Journal Volume 14 Number 2.
cmpute: A tool to generate or replace a variable
P. Royston. 2013.
Stata Journal Volume 13 Number 4.
marginscontplot: Plotting the marginal effects of continuous predictors
P. Royston. 2013.
Stata Journal Volume 13 Number 3.
Tools to simulate realistic censored survival-time distributions
P. Royston. 2012.
Stata Journal Volume 12 Number 4.
Projection of power and events in clinical trials with a time-to-event outcome
P. Royston and F. M.-S. Barthel. 2010.
Stata Journal Volume 10 Number 3.
A menu-driven facility for sample-size calculation in novel multiarm, multistage randomized controlled trials with a time-to-event outcome
F. M.-S. Barthel, P. Royston, and M. K. B. Parmar. 2009.
Stata Journal Volume 9 Number 4.
Bootstrap assessment of the stability of multivariable models
P. Royston and W. Sauerbrei. 2009.
Stata Journal Volume 9 Number 4.
Multiple imputation of missing values: Further update of ice, with an emphasis on categorical variables
P. Royston. 2009.
Stata Journal Volume 9 Number 3.
Two techniques for investigating interactions between treatment and continuous covariates in clinical trials
P. Royston and W. Sauerbrei. 2009.
Stata Journal Volume 9 Number 2.
Multiple imputation of missing values: New features for mim
P. Royston, J. B. Carlin, and I. R. White. 2009.
Stata Journal Volume 9 Number 2.
Further development of flexible parametric models for survival analysis
P. C. Lambert and P. Royston. 2009.
Stata Journal Volume 9 Number 2.
A new framework for managing and analyzing multiply imputed data in Stata
J. B. Carlin, J. C. Galati, and P. Royston. 2008.
Stata Journal Volume 8 Number 1.
Multiple imputation of missing values: further update of ice, with an emphasis on interval censoring
P. Royston. 2007.
Stata Journal Volume 7 Number 4.
Profile likelihood for estimation and confidence intervals
P. Royston. 2007.
Stata Journal Volume 7 Number 3.
Multivariable modeling with cubic regression splines: A principled approach
P. Royston and W. Sauerbrei. 2007.
Stata Journal Volume 7 Number 1.
Graphical representation of interactions
F. M.-S. Barthel and P. Royston. 2006.
Stata Journal Volume 6 Number 3.
Explained variation for survival models
P. Royston. 2006.
Stata Journal Volume 6 Number 1.
Multiple imputation of missing values: Update of ice
P. Royston. 2005.
Stata Journal Volume 5 Number 4.
A multivariable scatterplot smoother
P. Royston and N. J. Cox. 2005.
Stata Journal Volume 5 Number 3.
Multiple imputation of missing values: update
P. Royston. 2005.
Stata Journal Volume 5 Number 2.
Stata tip 19: A way to leaner, faster graphs
P. Royston. 2005.
Stata Journal Volume 5 Number 2.
Stata at 20: a personal view
P. Royston. 2005.
Stata Journal Volume 5 Number 1.
A menu–driven facility for complex sample size calculation in randomized controlled trials with a survival or a binary outcome: Update
F. M.-S. Barthel, P. Royston, and A. Babiker. 2005.
Stata Journal Volume 5 Number 1.
Multiple imputation of missing values
P. Royston. 2004.
Stata Journal Volume 4 Number 3.
Stata tip 11: The nolog option with maximum–likelihood modeling commands
P. Royston. 2004.
Stata Journal Volume 4 Number 3.
Stata tip 7: Copying and pasting under Windows
S. Driver and P. Royston. 2004.
Stata Journal Volume 4 Number 2.
Flexible parametric alternatives to the Cox model: update
P. Royston. 2004.
Stata Journal Volume 4 Number 1.
Using Aalen's linear hazards model to investigate time–varying effects in the proportional hazards regression model
D. W. Hosmer and P. Royston. 2002.
Stata Journal Volume 2 Number 4.
A menu–driven facility for complex sample size calculation in randomized controlled trials with a survival or a binary outcome
P. Royston and A. Babiker. 2002.
Stata Journal Volume 2 Number 2.
Flexible parametric alternatives to the Cox model, and more
P. Royston. 2001.
Stata Journal Volume 1 Number 1.
Sort a list of items
P. Royston. 2001.
Stata Journal Volume 1 Number 1.