The association between birthweight and log transformed saliva and plasma HPA outcomes stratified by genotype for the most significant SNP*birthweight interactions (p<0.01).

aBeta and P-value from multivariate linear regression adjusted for for BMI, blood draw time, sex and oral contraception use.bPlasma free cortisol was calculated using Coolen's equation.cAll HPA outcomes are log transformed. Salivary cortisol is the mean concentration over three days.