van Breukelen GJ - Search Results

1

Optimal number of repeated measures and group sizes in clinical trials with linearly divergent treatment effects.

Winkens B, Schouten HJ, van Breukelen GJ, Berger MP. Winkens B, et al. Among authors: van breukelen gj. Contemp Clin Trials. 2006 Feb;27(1):57-69. doi: 10.1016/j.cct.2005.09.005. Epub 2005 Nov 2. Contemp Clin Trials. 2006. PMID: 16260188

2

[Roaming through methodology. XXI. How to arrive at a weighed total score of separate items of a questionnaire].

van Breukelen GJ, Berger MP. van Breukelen GJ, et al. Ned Tijdschr Geneeskd. 2000 Aug 12;144(33):1580-4. Ned Tijdschr Geneeskd. 2000. PMID: 10965366 Review. Dutch.

3

A comparison between traditional methods and multilevel regression for the analysis of multicenter intervention studies.

Moerbeek M, van Breukelen GJ, Berger MP. Moerbeek M, et al. Among authors: van breukelen gj. J Clin Epidemiol. 2003 Apr;56(4):341-50. doi: 10.1016/s0895-4356(03)00007-6. J Clin Epidemiol. 2003. PMID: 12767411 Review.

4

Optimal time-points in clinical trials with linearly divergent treatment effects.

Winkens B, Schouten HJ, van Breukelen GJ, Berger MP. Winkens B, et al. Among authors: van breukelen gj. Stat Med. 2005 Dec 30;24(24):3743-56. doi: 10.1002/sim.2385. Stat Med. 2005. PMID: 16320272

5

ANCOVA versus change from baseline: more power in randomized studies, more bias in nonrandomized studies [corrected].

Van Breukelen GJ. Van Breukelen GJ. J Clin Epidemiol. 2006 Sep;59(9):920-5. doi: 10.1016/j.jclinepi.2006.02.007. Epub 2006 Jun 23. J Clin Epidemiol. 2006. PMID: 16895814

6

Relative efficiency of unequal versus equal cluster sizes in cluster randomized and multicentre trials.

van Breukelen GJ, Candel MJ, Berger MP. van Breukelen GJ, et al. Stat Med. 2007 Jun 15;26(13):2589-603. doi: 10.1002/sim.2740. Stat Med. 2007. PMID: 17094074

7

Randomized clinical trials with a pre- and a post-treatment measurement: repeated measures versus ANCOVA models.

Winkens B, van Breukelen GJ, Schouten HJ, Berger MP. Winkens B, et al. Among authors: van breukelen gj. Contemp Clin Trials. 2007 Nov;28(6):713-9. doi: 10.1016/j.cct.2007.04.002. Epub 2007 Apr 21. Contemp Clin Trials. 2007. PMID: 17524958

8

Optimal designs for clinical trials with second-order polynomial treatment effects.

Winkens B, Schouten HJ, van Breukelen GJ, Berger MP. Winkens B, et al. Among authors: van breukelen gj. Stat Methods Med Res. 2007 Dec;16(6):523-37. doi: 10.1177/0962280206071847. Epub 2007 Aug 14. Stat Methods Med Res. 2007. PMID: 17698939

9

Relative efficiency of unequal cluster sizes for variance component estimation in cluster randomized and multicentre trials.

van Breukelen GJ, Candel MJ, Berger MP. van Breukelen GJ, et al. Stat Methods Med Res. 2008 Aug;17(4):439-58. doi: 10.1177/0962280206079018. Epub 2007 Aug 14. Stat Methods Med Res. 2008. PMID: 17698940

10

Varying cluster sizes in trials with clusters in one treatment arm: sample size adjustments when testing treatment effects with linear mixed models.

Candel MJ, Van Breukelen GJ. Candel MJ, et al. Among authors: van breukelen gj. Stat Med. 2009 Aug 15;28(18):2307-24. doi: 10.1002/sim.3620. Stat Med. 2009. PMID: 19472169

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