Fig. 1
From: Improved selection of participants in genetic longevity studies: family scores revisited
Example of three hypothetical populations with 20 sibships with sizes Ni = 2,3,...,21. In each population families are ranked according to SEf (left panel) and LRC (right panel). The black lines represents a population in which all families have two siblings belonging to the top 5% survivors (long-lived) of their sex-specific birth cohort and the rest of siblings belonging to the top 30% survivors (not long-lived). The blue lines represent a population in which all families have two siblings belonging to the top 10% survivors (long-lived) of their sex-specific birth cohort and the rest of siblings belonging to the top 30% survivors. The pink lines represent a population composed of families with all family members not log-lived, belonging to the top 30% survivors. The left panel shows the value of SEf with increasing number of non-lived family members. The right panel shows the value of LRC with increasing number of non-lived family members. Because of the definition of LRC, black and blue lines coincide in the right panel