AMH and ovarian hyperstimulation syndrome: In women with AMH < 15 pmol/L, the incidence of early OHSS and the incidence of preventive intervention for early OHSS was similar between the two groups (Table 3), whereas in women with AMH ≥ 15 pmol/l, the incidence of early OHSS (5.0% vs. 9.5%) and the incidence of preventive interventions for early OHSS (2.0% vs. 5.1%) were both lower in the follitropin delta group than those in the follitropin alfa group.