Royston P - Search Results

1

Prognostic model for HIV-1 disease progression in patients starting antiretroviral therapy was validated using independent data.

May M, Porter K, Sterne JA, Royston P, Egger M. May M, et al. Among authors: royston p. J Clin Epidemiol. 2005 Oct;58(10):1033-41. doi: 10.1016/j.jclinepi.2005.02.015. J Clin Epidemiol. 2005. PMID: 16168349

2

Development and validation of a prognostic model for survival time data: application to prognosis of HIV positive patients treated with antiretroviral therapy.

May M, Royston P, Egger M, Justice AC, Sterne JA; ART Cohort Collaboration. May M, et al. Among authors: royston p. Stat Med. 2004 Aug 15;23(15):2375-98. doi: 10.1002/sim.1825. Stat Med. 2004. PMID: 15273954

3

Multiple imputation for missing data in epidemiological and clinical research: potential and pitfalls.

Sterne JA, White IR, Carlin JB, Spratt M, Royston P, Kenward MG, Wood AM, Carpenter JR. Sterne JA, et al. Among authors: royston p. BMJ. 2009 Jun 29;338:b2393. doi: 10.1136/bmj.b2393. BMJ. 2009. PMID: 19564179 Free PMC article.

4

Development and validation of a prediction model with missing predictor data: a practical approach.

Vergouwe Y, Royston P, Moons KG, Altman DG. Vergouwe Y, et al. Among authors: royston p. J Clin Epidemiol. 2010 Feb;63(2):205-14. doi: 10.1016/j.jclinepi.2009.03.017. Epub 2009 Jul 12. J Clin Epidemiol. 2010. PMID: 19596181

5

A new measure of prognostic separation in survival data.

Royston P, Sauerbrei W. Royston P, et al. Stat Med. 2004 Mar 15;23(5):723-48. doi: 10.1002/sim.1621. Stat Med. 2004. PMID: 14981672

6

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

Royston P, Altman DG. Royston P, et al. BMC Med Res Methodol. 2013 Mar 6;13:33. doi: 10.1186/1471-2288-13-33. BMC Med Res Methodol. 2013. PMID: 23496923 Free PMC article.

7

Evaluation of sample size and power for multi-arm survival trials allowing for non-uniform accrual, non-proportional hazards, loss to follow-up and cross-over.

Barthel FM, Babiker A, Royston P, Parmar MK. Barthel FM, et al. Among authors: royston p. Stat Med. 2006 Aug 15;25(15):2521-42. doi: 10.1002/sim.2517. Stat Med. 2006. PMID: 16479563

8

Modeling the effects of continuous risk factors.

Royston P, Sauerbrei W, Altman DG. Royston P, et al. J Clin Epidemiol. 2000 Feb;53(2):219-21. doi: 10.1016/s0895-4356(99)00163-8. J Clin Epidemiol. 2000. PMID: 10755886 No abstract available.

9

The use of fractional polynomials to model continuous risk variables in epidemiology.

Royston P, Ambler G, Sauerbrei W. Royston P, et al. Int J Epidemiol. 1999 Oct;28(5):964-74. doi: 10.1093/ije/28.5.964. Int J Epidemiol. 1999. PMID: 10597998

10

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.

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