Guoguang Ma

Summary

Affiliation: Merck Research Laboratories
Country: USA

Publications

  1. ncbi request reprint An index of local sensitivity to nonignorable drop-out in longitudinal modelling
    Guoguang Ma
    Clinical Biostatistics, Merck and Co Inc, BL3 2, Blue Bell, PA 19422, USA
    Stat Med 24:2129-50. 2005
  2. ncbi request reprint 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

Detail Information

Publications2

  1. ncbi request reprint An index of local sensitivity to nonignorable drop-out in longitudinal modelling
    Guoguang 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...
  2. ncbi request reprint 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...