| Control (n = 4750) | RIF (n = 462) | t/X2 | P |
---|---|---|---|---|
FSH (IU/L) | 7.62 ± 3.35 | 8.64 ± 3.28 | -2.722 | 0.007 |
LH (IU/L) | 4.84 ± 3.18 | 4.63 ± 2.18 | 0.769 | 0.442 |
E2 (pg/m L) | 48.48 ± 20.67 | 45.59 ± 19.88 | 1.209 | 0.228 |
P (ng/m L) | 0.89 ± 2.28 | 0.81 ± 0.76 | 0.337 | 0.736 |
PRL (ng/m L) | 20.89 ± 10.32 | 20.19 ± 14.61 | 1.602 | 0.109 |
T (ng/m L) | 0.43 ± 0.23 | 0.42 ± 0.25 | 0.212 | 0.833 |
AMH (ng/m L) | 4.84 ± 3.71 | 3.07 ± 2.48 | 2.585 | 0.011 |
FT3 (pmol/L) | 4.95 ± 0.6 | 4.93 ± 0.94 | 0.138 | 0.891 |
FT4 (pmol/L) | 17.77 ± 3.56 | 17.93 ± 3.17 | 0.166 | 0.869 |
TSH (u IU/m L) | 2.45 ± 0.3 | 2.61 ± 0.51 | -1.255 | 0.217 |
HOMA-IR | 1.81 ± 0.519 | 2.21 ± 0.67 | -6.951 | 0.000 |
Chromosome karyotype (female partner) | Â | Â | 0.332 | 0.564 |
Normal abnormal | 4570(96.21) 180(3.79) | 442(95.67) 20(4.33) | Â | Â |
Chromosome karyotype (male partner) | Â | Â | 0.065 | 0.798 |
 Normal  abnormal | 4345(91.47) 405(8.53) | 421(91.13) 41(8.87) |  |  |
Hysteroscopy | Â | Â | 184.569 | 0.000 |
 Normal | 3670(77.26) | 224(48.48) |  |  |
 abnormal | 1080(22.74) | 238(51.52) |  |  |
Endometrial thickness on the day of HCG administration (mm) | 11.52 ± 1.91 | 9.54 ± 1.89 | 5.080 | 0.000 |
Immune factor | Â | Â | Â | Â |
 ACA |  |  | 0.362 | 0.548 |
  Positive   Negative | 305(6.42) 4445(93.58) | 33(7.14) 429(92.86) |  |  |
 ANA |  |  | 74.34 | 0.000 |
  Positive   Negative | 575(12.11) 4175(87.89) | 122(26.41) 340(73.59) |  |  |
 A-β2-GPI Ab |  |  | 104.994 | 0.000 |
  Positive   Negative | 120(2.53) 4630(97.47) | 53(11.47) 409(88.53) |  |  |
 TG-Ab |  |  | 73.558 | 0.000 |
  Positive   Negative | 495(10.42) 4255(89.58) | 110(23.81) 352(76.19) |  |  |
 TPO-Ab |  |  | 24.679 | 0.000 |
  Positive   Negative | 485(10.21) 4265(89.79) | 82(17.75) 380(82.25) |  |  |