Table 1.
Baseline characteristics.
| Variable | Day-3 Serum AMH (ng/ml) | P value | ||||
|---|---|---|---|---|---|---|
| Group 1, AMH ≤ 6.77 N=611 | Group 2, 6.77-14.30 n=1216 | Group 3, AMH≥14.30 N=609 | p-value Group 1 vs. Group 3 | p-value Group 1 vs. Group 2 | p-value Group 2 vs. Group 3 | |
| Maternal age, y | 29.50 ± 3.72 | 28.88 ± 3.35 | 28.59 ± 3.14 | <0.001 | 0.001 | NS |
| Body mass index, kg/m2 | 23.31 ± 3.50 | 22.66 ± 3.22 | 22.38 ± 3.12 | <0.001 | 0.001 | NS |
| Baseline FSH, mIU/mL | 6.80 ± 1.74 | 6.60 ± 1.56 | 6.53 ± 1.42 | 0.017 | 0.033 | NS |
| Antral follicle count (AFC) | 21.08 ± 4.31 | 23.24 ± 4.24 | 26.09 ± 6.94 | <0.001 | <0.001 | <0.001 |
| Duration of infertility, years | 3.49 ± 2.31 | 3.46 ± 2.17 | 3.61 ± 2.24 | NS | NS | NS |
| Infertility diagnosis | NS | NS | NS | |||
| Primary infertility, % | 74.1 (453/611) | 73.7 (896/1216) | 75.0 (457/609) | |||
| Secondary infertility, % | 25.9 (158/611) | 26.3 (320/1216) | 25.0 (152/609) | |||
| Infertility etiology, % | NS | NS | NS | |||
| Male factor | 22.6 (138/611) | 26.0 (316/1216) | 22.0 (134/609) | |||
| Tubal factor | 36.8 (225/611) | 40.3 (490/1216) | 38.8 (236/609) | |||
| Endometriosis | 3.4 (21/611) | 2.2 (27/1216) | 2.5 (15/609) | |||
| Ovulatory | 0.7 (4/611) | 0.1 (1/1216) | 0.3 (2/609) | |||
| Uterine malformation | 4.6 (28/611) | 4.6 (56/1216) | 4.9 (30/609) | |||
| Unexplained/Other | 31.9 (195/611) | 26.8 (326/1216) | 31.5 (192/609) | |||
NS, not statistically significant.