Sample size calculations for case-control studies
This R package can be used to calculate the required samples size for unconditional multivariate analyses of unmatched case-control studies. The sample sizes are for a scalar exposure effect, such as binary, ordinal or continuous exposures. The sample sizes can also be computed for scalar interaction effects. The analyses account for the effects of potential confounder variables that are also included in the multivariate logistic model.
- samplesizelogisticcasecontrol (Link to CRAN)
- Gail MH, Haneuse S. Power and sample size for multivariate logistic modeling of unmatched case-control studies. Stat Methods Med Res 2017 Jan 1:962280217737157. doi: 10.1177/0962280217737157.