O'Neill R T
Am J Epidemiol. 1984 Jul;120(1):145-53. doi: 10.1093/oxfordjournals.aje.a113863.
A method is presented to obtain sample sizes for cases and controls that are required to provide approximate confidence intervals on the log odds ratio of predetermined width 2d and probability of coverage as a function of assumed exposure rates in the control group, assumed odds ratio psi, required d, and ratio C:1 of controls to cases.
本文提出了一种方法,用于获取病例组和对照组所需的样本量,这些样本量能够针对预定宽度为2d的对数比值比提供近似置信区间,并作为对照组中假定暴露率、假定比值比ψ、所需的d以及对照组与病例组C:1比例的函数给出覆盖概率。