Table 1.
Comparison of baseline characteristics and parameters of the ovarian reserve between groups.
| Variables | PM 0 (n = 213) | PM 1(n = 99) | PM 2 (n = 46) | PM 3 (n = 35) | P-value |
|---|---|---|---|---|---|
| <35 years | 138 (64.00%) | 49 (49.49%) | 25 (54.35%) | 19 (54.29%) | 0.061 |
| ≥35 years | 75 (35.21%) | 50 (50.51%) | 21 (45.65%) | 16 (45.71%) | |
| BMI (kg/m2) | 20.83 (19.48, 23.01) | 21.08 (19.29, 23.23) | 21.01 (19.42, 23.46) | 21.64 (20.03, 24.03) | 0.340 |
| AMH (ng/ml) | 4.04 (2.32, 6.93) | 3.40 (2.05, 5.06) | 3.14 (1.36, 6.10) | 2.55 (1.30, 3.78) | 0.001 |
| AFC (number) | 10 (7, 15) | 8 (6, 12) | 8 (6, 10) | 6 (5, 10) | <0.001 |
| FSH (IU/L) | 5.55 (4.67, 6.67) | 5.79 (4.79, 6.96) | 5.20 (4.53, 6.92) | 5.83 (4.52, 7.58) | 0.641 |
| E2 (pg/ml) | 34.00 (26.25, 45.75) | 36.00 (27.00, 44.00) | 35.00 (27.00, 46.00) | 36.00 (29.00, 55.00) | 0.636 |
| LH (IU/L) | 3.48 (2.66, 4.45) | 3.21 (2.49, 4.18) | 3.58 (2.25, 4.35) | 3.28 (2.58, 4.16) | 0.745 |
| FSH/LH(value) | 1.63 (1.21, 2.27) | 1.75 (1.38, 2.35) | 1.77 (1.33, 2.28) | 1.74 (1.21,2.60) | 0.598 |
Nonnormally distributed data were presented as numbers (%) or as medians (interquartile ranges).
OR, ovarian reserve; PM0, no previous miscarriages; PM1, one previous miscarriage; PM2, two previous miscarriages; PM3, three or more previous miscarriages; BMI, body mass index; AMH, anti-Müllerian hormone; AFC, antrum follicle count; FSH, follicle-stimulating hormone; E2, estradiol; LH, luteinizing hormone.