Greenland S
Department of Epidemiology, UCLA School of Public Health 90024-1772.
Biometrics. 1991 Jun;47(2):773-5; discussion 776.
Kalish (1990, Biometrics 46, 493-499) proposed an approximately optimal estimator of a common odds ratio for pair-matched case-control studies. His approach is easily extended to general stratified studies. For unmatched stratified studies, the form of the approximately optimal estimator is very simple, and may often correspond to no more than a small correction to the ordinary stratified estimator.
卡利什（1990年，《生物统计学》46卷，493 - 499页）针对配对病例对照研究提出了一种近似最优的共同优势比估计量。他的方法很容易扩展到一般的分层研究。对于非配对分层研究，近似最优估计量的形式非常简单，通常可能只不过是对普通分层估计量的一个小修正。
