AMH and Alzheimer disease: Comparison of basic clinical data between the YD group (age < 35y, and DOR: AMH < 1 ng/ml, AFC < 5) and AD group (age ≥ 35y, and DOR: AMH < 1 ng/ml, AFC < 5) revealed that in addition to the significant difference in age (P < 0.0001), basal estrogen level was significantly higher in elderly women with DOR (P < 0.05), but there was still no significant difference in ART treatment outcomes between the two groups (Fig. 2A, B).