Fig. 1From: The surprising implications of familial association in disease riska The familial relative risk (FRR) as a function of the individual relative risk (IRR) defined in terms of the dichotomous model in Expression (1) and (2), assuming one or two diseased family members, respectively. b The IRR as a function of the FRR. 1% of the population belong to the high-risk group (q=0.1) in both panelsBack to article page