Case-crossover and case-time-control studies: concepts, design, and analysis
Background & Aim: Case-crossover studies are the case-control version of crossover studies. In these studies, cases and controls are the same subjects. The term crossover is applied for designs that all subjects pass through both treatment (exposure) and placebo (non-exposure) phases. In fact t...
Tehran University of Medical Sciences
|Series:||Journal of Biostatistics and Epidemiology|