Maternal characteristics
A total of 2,449 mothers were analyzed. The median age of the population
was 34 years (IQR 30.01 – 37) and the median BMI was
22.96 kg/m2 (IQR 20.76 – 25.95). Baseline
characteristics of the mothers are shown in Table 1. Pregnancies
resulting from ART were most common in the underweight group and lowest
in the obese group. While rates of primiparas were similar in
underweight and normal weight mothers, they decreased in overweight and
obese mothers. Within the obese group, the highest rate was among
obesity class I mothers. Rates of history of cesarean sections increased
parallel to weight classes. Rates of underlying hypertension and
diabetes mellitus were the highest among obesity class II mothers.