TABLE 1

Family structures

Number of pedigrees115
Pedigrees with one sib with BMI ≥95th percentile18
Pedigrees with two sibs with BMI ≥95th percentile74
Pedigrees with three sibs with BMI ≥95th percentile21
Pedigrees with four sibs with BMI ≥95th percentile2
Number of documented sibpairs233
Number of sibpairs with BMI ≥95th percentile149
Number of sibpairs with BMI ≥97th percentile135
Number of sibpairs with BMI ≥99th percentile109