Fig. 3.

Maternal age is positively correlated with imprinting of the nc886 DMR in children at birth in South Africa. Plot of proportion of individuals with imprinting at nc886 with increasing maternal age, estimated using standard logistic regression with maternal age as the only covariate. Data represented are from children born to South African mothers, collected in this study and pooled without regard to drinking and smoking status. Estimates were calculated. The shaded gray area is the 95% confidence interval ribbon.