Differences in bone stiffness index (Δ SI) between risk and non-risk genotype carriers at T0.

aAdjusted for age, sex and country.bModel selected according to the highest association after FDR correction (PROC MULTTEST in SAS software).cHomozygotes for wild-type (instead of variant) allele were shown to concordantly retain the genotypes with lower values.dCarriers of Haplotype TTC as reference.