The mean maternal ... age — risks for certain adverse events rise. Specifically, pregnant people older than 35 years have a greater risk for gestational diabetes, miscarriage, genetic disorders ...

Genetic predisposition and maternal hyperglycemia exposure were independently and additively associated with impaired glucose tolerance in offspring.

Women with a genetic predisposition to chronic hepatitis B (CHB) infection had a 15% higher risk of developing pre-eclampsia (OR = 1.15). These women also had a 56% higher risk of developing eclampsia ...

The statistics ... increase with maternal age. The rate for women aged 40 and over was 6.8 times higher than the rate for women under 25. “Women over 40 are at higher risk for hypertensive ...