Search Results

You are looking at 1 - 1 of 1 items for

  • Author: Rolf H H Groenwold x
Clear All Modify Search
Restricted access

Rolf H H Groenwold and Olaf M Dekkers

The results of observational studies of causal effects are potentially biased due to confounding. Various methods have been proposed to control for confounding in observational studies. Eight basic aspects of confounding adjustment are described, with a focus on correction for confounding through covariate adjustment using regression analysis. These aspects should be considered when planning an observational study of causal effects or when assessing the validity of the results of such a study.