Table 1 The baseline characteristics of PCOS women grouped according to whether or not the intial rFSH dose were stepped up
ALL (n = 825) | Did not step up rFSH dose (n = 508) | Need to step up rFSH dose (n = 317) | P Value | |
|---|---|---|---|---|
Age, y | 30.2 ± 3.8 | 29.6 ± 3.5 | 29.9 ± 3.4 | 0.193 |
BMI, kg/m2 | 21.26 ± 2.98 | 21.1 ± 2.8 | 22.6 ± 3.4 | 0.002 |
Duration of infertility, y | 4.0 ± 2.7 | 3.9 ± 2.3 | 4.1 ± 2.4 | 0.089 |
Infertility type, % | 0.654 | |||
Primary | 57.4% (473) | 57.9% (294) | 56.6% (179) | |
Secondary | 42.6% (352) | 42.1% (214) | 43.4% (138) | |
Serum LH, IU/L | 8.18 ± 5.40 | 8.00 ± 5.44 | 8.46 ± 5.32 | 0.237 |
Serum FSH, IU/L | 6.90 ± 1.61 | 6.98 ± 1.62 | 6.78 ± 1.59 | 0.096 |
Serum T, ng/ml | 0.55 ± 0.20 | 0.53 ± 0.20 | 0.58 ± 0.21 | < 0.001 |
AFC | 31.6 ± 9.9 | 31.0 ± 9.3 | 32.0 ± 10.8 | 0.03 |
Serum AMH, ng/mL | 9.72 ± 3.45 | 8.69 ± 3.16 | 11.37 ± 3.25 | < 0.001 |
Initial rFSH dose | 112.5 (100, 150) | 112.5 (100, 150) | 112.5 (100, 150) | 0.195 |