Adjusting for selection bias in retrospective, case-control studies
Adjusting for selection bias in retrospective, case-control studies
Retrospective caseācontrol studies are more susceptible to selection bias than other epidemiologic studies as by design they require that both cases and controls are representative of the same population. However, as cases and control recruitment processes are often different, it is not always obvious that the necessary exchangeability conditions hold. ā¦