AMH and Infertility: Meanwhile, Du et al. [22] reported that a higher AMH (75-100th percentile) was associated with an increased risk for preterm birth among women with a BMI ≥ 24 kg/m2 (OR: 2.10, 95% CI: 1.01–4.37) but not among women with a BMI < 24 kg/m2 (OR: 0.78, 95% CI: 0.35–1.73) after adjusting for multiple confounding factors, including maternal age, BMI, duration of infertility, and basal antral follicle count.