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Fig. 1 | BMC Medical Genetics

Fig. 1

From: The importance of distinguishing between the odds ratio and the incidence rate ratio in GWAS

Fig. 1

Longitudinal data. Each horizontal line indicates an individual’s lifespan. The black filled diamonds indicate that the given individuals become diseased. The green hatched area indicates the sampling period of the case-control study. The green dots indicate all possible controls in a classical case-control study (design 1). The red dots indicate all possible controls for incidence density sampling matched to the selected case (design 2)

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