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176 results
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Imputing missing covariate values for the Cox model.
White IR, Royston P. White IR, et al. Among authors: royston p. Stat Med. 2009 Jul 10;28(15):1982-98. doi: 10.1002/sim.3618. Stat Med. 2009. PMID: 19452569 Free PMC article.
Testing many treatments within a single protocol over 10 years at MRC Clinical Trials Unit at UCL: Multi-arm, multi-stage platform, umbrella and basket protocols.
Parmar MK, Sydes MR, Cafferty FH, Choodari-Oskooei B, Langley RE, Brown L, Phillips PP, Spears MR, Rowley S, Kaplan R, James ND, Maughan T, Paton N, Royston PJ. Parmar MK, et al. Among authors: royston pj. Clin Trials. 2017 Oct;14(5):451-461. doi: 10.1177/1740774517725697. Epub 2017 Aug 22. Clin Trials. 2017. PMID: 28830236 Free PMC article.
Visualizing and assessing discrimination in the logistic regression model.
Royston P, Altman DG. Royston P, et al. Stat Med. 2010 Oct 30;29(24):2508-20. doi: 10.1002/sim.3994. Stat Med. 2010. PMID: 20641144
Combining estimates of interest in prognostic modelling studies after multiple imputation: current practice and guidelines.
Marshall A, Altman DG, Holder RL, Royston P. Marshall A, et al. Among authors: royston p. BMC Med Res Methodol. 2009 Jul 28;9:57. doi: 10.1186/1471-2288-9-57. BMC Med Res Methodol. 2009. PMID: 19638200 Free PMC article.
A comparison of imputation techniques for handling missing predictor values in a risk model with a binary outcome.
Ambler G, Omar RZ, Royston P. Ambler G, et al. Among authors: royston p. Stat Methods Med Res. 2007 Jun;16(3):277-98. doi: 10.1177/0962280206074466. Stat Methods Med Res. 2007. PMID: 17621472
The estimation and use of predictions for the assessment of model performance using large samples with multiply imputed data.
Wood AM, Royston P, White IR. Wood AM, et al. Among authors: royston p. Biom J. 2015 Jul;57(4):614-32. doi: 10.1002/bimj.201400004. Epub 2015 Jan 29. Biom J. 2015. PMID: 25630926 Free PMC article.
The extension of total gain (TG) statistic in survival models: properties and applications.
Choodari-Oskooei B, Royston P, Parmar MK. Choodari-Oskooei B, et al. Among authors: royston p. BMC Med Res Methodol. 2015 Jul 1;15:50. doi: 10.1186/s12874-015-0042-x. BMC Med Res Methodol. 2015. PMID: 26126418 Free PMC article.
Reporting performance of prognostic models in cancer: a review.
Mallett S, Royston P, Waters R, Dutton S, Altman DG. Mallett S, et al. Among authors: royston p. BMC Med. 2010 Mar 30;8:21. doi: 10.1186/1741-7015-8-21. BMC Med. 2010. PMID: 20353579 Free PMC article. Review.
Reporting methods in studies developing prognostic models in cancer: a review.
Mallett S, Royston P, Dutton S, Waters R, Altman DG. Mallett S, et al. Among authors: royston p. BMC Med. 2010 Mar 30;8:20. doi: 10.1186/1741-7015-8-20. BMC Med. 2010. PMID: 20353578 Free PMC article. Review.
Comparison of techniques for handling missing covariate data within prognostic modelling studies: a simulation study.
Marshall A, Altman DG, Royston P, Holder RL. Marshall A, et al. Among authors: royston p. BMC Med Res Methodol. 2010 Jan 19;10:7. doi: 10.1186/1471-2288-10-7. BMC Med Res Methodol. 2010. PMID: 20085642 Free PMC article.
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