Omar RZ - Search Results

1

Review and evaluation of penalised regression methods for risk prediction in low-dimensional data with few events.

Pavlou M, Ambler G, Seaman S, De Iorio M, Omar RZ. Pavlou M, et al. Among authors: omar rz. Stat Med. 2016 Mar 30;35(7):1159-77. doi: 10.1002/sim.6782. Epub 2015 Oct 29. Stat Med. 2016. PMID: 26514699 Free PMC article. Review.

2

A multilevel model framework for meta-analysis of clinical trials with binary outcomes.

Turner RM, Omar RZ, Yang M, Goldstein H, Thompson SG. Turner RM, et al. Among authors: omar rz. Stat Med. 2000 Dec 30;19(24):3417-32. doi: 10.1002/1097-0258(20001230)19:24<3417::aid-sim614>3.0.co;2-l. Stat Med. 2000. PMID: 11122505

3

Bayesian methods of analysis for cluster randomized trials with binary outcome data.

Turner RM, Omar RZ, Thompson SG. Turner RM, et al. Among authors: omar rz. Stat Med. 2001 Feb 15;20(3):453-72. doi: 10.1002/1097-0258(20010215)20:3<453::aid-sim803>3.0.co;2-l. Stat Med. 2001. PMID: 11180313

4

Meta-analysis of continuous outcome data from individual patients.

Higgins JP, Whitehead A, Turner RM, Omar RZ, Thompson SG. Higgins JP, et al. Among authors: omar rz. Stat Med. 2001 Aug 15;20(15):2219-41. doi: 10.1002/sim.918. Stat Med. 2001. PMID: 11468761

5

An evaluation of existing risk stratification models as a tool for comparison of surgical performances for coronary artery bypass grafting between institutions.

Asimakopoulos G, Al-Ruzzeh S, Ambler G, Omar RZ, Punjabi P, Amrani M, Taylor KM. Asimakopoulos G, et al. Among authors: omar rz. Eur J Cardiothorac Surg. 2003 Jun;23(6):935-41; discussion 941-2. doi: 10.1016/s1010-7940(03)00165-9. Eur J Cardiothorac Surg. 2003. PMID: 12829069

6

Cardiac surgery risk modeling for mortality: a review of current practice and suggestions for improvement.

Omar RZ, Ambler G, Royston P, Eliahoo J, Taylor KM. Omar RZ, et al. Ann Thorac Surg. 2004 Jun;77(6):2232-7. doi: 10.1016/j.athoracsur.2003.10.032. Ann Thorac Surg. 2004. PMID: 15172320 Review.

7

Generic, simple risk stratification model for heart valve surgery.

Ambler G, Omar RZ, Royston P, Kinsman R, Keogh BE, Taylor KM. Ambler G, et al. Among authors: omar rz. Circulation. 2005 Jul 12;112(2):224-31. doi: 10.1161/CIRCULATIONAHA.104.515049. Epub 2005 Jul 5. Circulation. 2005. PMID: 15998680

8

Case-mix and variation in specialist referrals in general practice.

Sullivan CO, Omar RZ, Ambler G, Majeed A. Sullivan CO, et al. Among authors: omar rz. Br J Gen Pract. 2005 Jul;55(516):529-33. Br J Gen Pract. 2005. PMID: 16004738 Free PMC article.

9

Constructing intervals for the intracluster correlation coefficient using Bayesian modelling, and application in cluster randomized trials.

Turner RM, Omar RZ, Thompson SG. Turner RM, et al. Among authors: omar rz. Stat Med. 2006 May 15;25(9):1443-56. doi: 10.1002/sim.2304. Stat Med. 2006. PMID: 16220510

10

Quality research in healthcare: are researchers getting enough statistical support?

Omar RZ, McNally N, Ambler G, Pollock AM. Omar RZ, et al. BMC Health Serv Res. 2006 Jan 12;6:2. doi: 10.1186/1472-6963-6-2. BMC Health Serv Res. 2006. PMID: 16409636 Free PMC article.

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