Affiliation: Merck Research Laboratories
- An index of local sensitivity to nonignorable drop-out in longitudinal modellingGuoguang Ma
Clinical Biostatistics, Merck and Co Inc, BL3 2, Blue Bell, PA 19422, USA
Stat Med 24:2129-50. 2005..The computation is straightforward, and merely involves estimating a mixed-effects model and a selection model for the drop-out, together with some simple arithmetic calculations. We illustrate the method with three examples...
- Are there differences between women's and men's antidepressant responses?Frederic M Quitkin
Department of Therapeutics, New York State Psychiatric Institute and Columbia University College of Physicians and Surgeons, New York 10032, USA
Am J Psychiatry 159:1848-54. 2002..The study examined a large data set to determine whether patients' sex affected the outcome of antidepressant treatment...