Characteristicsa | Developing set n = 3108 | Validating set n = 1602 | P |
---|---|---|---|
CI occurrence, n (%) | 69 (2.22) | 40 (2.50) | 0.549 |
Age, years | 31.44 ± 4.21 | 31.66 ± 4.26 | 0.722 |
Infertility duration, years | 4.41 ± 2.96 | 4.43 ± 3.00 | 0.981 |
Twins pregnancy, n (%) | 410 (13.19) | 208 (12.98) | 0.841 |
BMI, kg/m2 | 22.00 ± 3.05 | 22.04±3.07 | 0.641 |
FSH, IU/L | 6.73 ± 1.83 | 6.72 ± 1.99 | 0.385 |
LH, IU/L | 5.27 ± 2.68 | 5.34 ± 2.87 | 0.822 |
E2, pg/mL | 39.17 ± 13.67 | 39.83 ± 13.64 | 0.080 |
T, ng/mL | 0.33 ± 0.24 | 0.33 ± 0.24 | 0.923 |
Uterine length > 45 mm, n (%) | 785 (25.26) | 419 (26.15) | 0.504 |
IVF/ICSI cycle | |||
1 | 1346 (43.31) | 667 (41.63) | |
2 or 3 | 976 (31.40) | 540 (33.71) | |
> 3 | 786 (25.28) | 395 (24.65) | 0.272 |
Median, (range) | 2 (1–4) | 2 (1–4) | 0.153 |
Gravidity, n (%) | |||
< 1 | 1656 (53.28) | 833 (52.00) | |
1 or 2 | 1239 (39.86) | 655 (40.89) | |
> 2 | 213 (6.85) | 114 (7.12) | 0.701 |
Median, (range) | 0 (0–4) | 0 (0–4) | 0.306 |
Hysteroscopic surgery, n (%) | 0.064 | ||
Yes | 1231 (39.61) | 672 (41.94) | |
No | 1877 (60.39) | 930 (58.06) |