Case Control Sample Size Stata. Corresponds to the case of no effect and the alternative hypothesis H a. The theory behind this command is described in Dupont 1988 Power Calculations for Matched Case-Control Studies Biometrics.
Evaluating our findings I want to calculate what our sample size must have been to detect a difference found in another study of a different population. Hi I have a matched case-control study with 12 cases and two controls for each case. Sampsi_mcc calculates the power and sample size for a matched case control study.
150 cases and 450 controls.
Following the method described by Self et al 1992 a large exemplary data set with expected risk factor frequencies among cases and controls. Sep 21 2012. For instance consider cancer among smokers and nonsmokers. Introduction to power and sample-size analysis 1.
