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Table 1 The basic characteristics of PCOS women in this trial

From: Progestin-primed milder stimulation with clomiphene citrate yields fewer oocytes and suboptimal pregnancy outcomes compared with the standard progestin-primed ovarian stimulation in infertile women with polycystic ovarian syndrome

  Study group
(HMG + MPA + CC; n = 110)
Control group
(HMG + MPA; n = 110)
Age (y) 30.5 ± 3.7 30.6 ± 3.4
Duration of infertility (y), 3.5 ± 2.6 3.9 ± 2.3
BMI (kg/m2) n (%)
 19~ 24.9 80(72.7%) 81(73.6%)
 25~ 29.9 25(22.7%) 24(21.8%)
  > =30 5(4.5%) 5(4.5%)
Previous IVF failures, n(%)
 0 89(80.9%) 88(80.8%)
 1–3 21(19.1%) 22(19.2%)
Indication for IVF n (%)
 PCOS only 27(24.5%) 30(27.3%)
 PCOS+ male factor 21(19.1%) 25(22.7%)
 PCOS+ tubal factor 52(52.7%) 49(44.5%)
 PCOS+ other 4(3.6%) 6(5.5%)
Menstrual cycle n (%)
 Regular 3(2.1%) 3(2.7%)
 Oligomenorrhea 82(74.5%) 91(82.7%)
 Amenorrhea 25(22.7%) 16(14.5%)
Antral follicle counts 17.9 ± 6.3 18.8 ± 7.1
Baseline hormones
 FSH (mIU/ml) 4.94 ± 1.10 5.0 ± 1.17
 LH (mIU/ml) 5.03 ± 3.18 5.61 ± 3.36
 E2(pg/ml) 32.54 ± 10.34 30.32 ± 12.52
 P(ng/ml) 0.26 ± 0.19 0.27 ± 0.19
 T (ng/ml) 0.35 ± 0.13 0.40 ± 0.19
  1. No significant difference was found between the two groups (P > 0.05)