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Results: 1 to 20 of 157

1.

The extension of total gain (TG) statistic in survival models: properties and applications.

Choodari-Oskooei B, Royston P, Parmar MK.

BMC Med Res Methodol. 2015 Jul 1;15:50. doi: 10.1186/s12874-015-0042-x.

2.

Meta-analysis of time-to-event outcomes from randomized trials using restricted mean survival time: application to individual participant data.

Wei Y, Royston P, Tierney JF, Parmar MK.

Stat Med. 2015 Sep 20;34(21):2881-98. doi: 10.1002/sim.6556. Epub 2015 Jun 23.

PMID:
26099573
3.

Combining fractional polynomial model building with multiple imputation.

Morris TP, White IR, Carpenter JR, Stanworth SJ, Royston P.

Stat Med. 2015 Jun 10. doi: 10.1002/sim.6553. [Epub ahead of print]

PMID:
26095614
4.

Prognostic survival model for people diagnosed with invasive cutaneous melanoma.

Baade PD, Royston P, Youl PH, Weinstock MA, Geller A, Aitken JF.

BMC Cancer. 2015 Jan 31;15:27. doi: 10.1186/s12885-015-1024-4.

5.

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.

Biom J. 2015 Jul;57(4):614-32. doi: 10.1002/bimj.201400004. Epub 2015 Jan 29.

6.

Interaction of treatment with a continuous variable: simulation study of power for several methods of analysis.

Royston P, Sauerbrei W.

Stat Med. 2014 Nov 30;33(27):4695-708. doi: 10.1002/sim.6308. Epub 2014 Sep 22.

PMID:
25244679
7.

An approach to trial design and analysis in the era of non-proportional hazards of the treatment effect.

Royston P, Parmar MK.

Trials. 2014 Aug 7;15:314. doi: 10.1186/1745-6215-15-314.

8.

Correcting for optimistic prediction in small data sets.

Smith GC, Seaman SR, Wood AM, Royston P, White IR.

Am J Epidemiol. 2014 Aug 1;180(3):318-24. doi: 10.1093/aje/kwu140. Epub 2014 Jun 24.

9.

Tuning multiple imputation by predictive mean matching and local residual draws.

Morris TP, White IR, Royston P.

BMC Med Res Methodol. 2014 Jun 5;14:75. doi: 10.1186/1471-2288-14-75.

10.
11.

Reference intervals of spinal mobility measures in normal individuals: the MOBILITY study.

Ramiro S, van Tubergen A, Stolwijk C, van der Heijde D, Royston P, Landewé R.

Ann Rheum Dis. 2015 Jun;74(6):1218-24. doi: 10.1136/annrheumdis-2013-204953. Epub 2014 Mar 24.

PMID:
24665113
12.
13.

Multiple imputation for an incomplete covariate that is a ratio.

Morris TP, White IR, Royston P, Seaman SR, Wood AM.

Stat Med. 2014 Jan 15;33(1):88-104. doi: 10.1002/sim.5935. Epub 2013 Aug 6.

14.

Exaggeration of the prognostic effect of Mammostrat: a consequence of poor reporting?

Sauerbrei W, Royston P.

J Clin Oncol. 2013 Jul 20;31(21):2760-1. doi: 10.1200/JCO.2013.49.2652. Epub 2013 Jun 17. No abstract available.

15.

Interaction of treatment with a continuous variable: simulation study of significance level for several methods of analysis.

Royston P, Sauerbrei W.

Stat Med. 2013 Sep 30;32(22):3788-803. doi: 10.1002/sim.5813. Epub 2013 Apr 12.

PMID:
23580422
16.

External validation of a Cox prognostic model: principles and methods.

Royston P, Altman DG.

BMC Med Res Methodol. 2013 Mar 6;13:33. doi: 10.1186/1471-2288-13-33.

17.

Impact of lack-of-benefit stopping rules on treatment effect estimates of two-arm multi-stage (TAMS) trials with time to event outcome.

Choodari-Oskooei B, Parmar MK, Royston P, Bowden J.

Trials. 2013 Jan 23;14:23. doi: 10.1186/1745-6215-14-23.

18.

Comparison between splines and fractional polynomials for multivariable model building with continuous covariates: a simulation study with continuous response.

Binder H, Sauerbrei W, Royston P.

Stat Med. 2013 Jun 15;32(13):2262-77. doi: 10.1002/sim.5639. Epub 2012 Oct 3.

PMID:
23034770
19.

Medical student characteristics predictive of intent for rural practice.

Royston PJ, Mathieson K, Leafman J, Ojan-Sheehan O.

Rural Remote Health. 2012;12:2107. Epub 2012 Aug 9.

20.

Analysing covariates with spike at zero: a modified FP procedure and conceptual issues.

Becher H, Lorenz E, Royston P, Sauerbrei W.

Biom J. 2012 Sep;54(5):686-700. doi: 10.1002/bimj.201100263. Epub 2012 Jul 9.

PMID:
22778015
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