However, among the OT1D, AF EPO correlated positively with 2-hour post-load serum insulin [non-adjusted r=0.42 (95% CI: 0.06 to 0.61)], and the correlation was strengthened by adjustment for maternal pre-gestational BMI, offspring relative birth weight, gestational age at birth, and offspring young adult BMI (adjusted r=0.44 (95% CI: 0.14 to 0.69)]. This evidence concerns the gene EPO and atrial fibrillation.