Characteristics | Before propensity score matching | P value | After propensity score matching | P value | ||
---|---|---|---|---|---|---|
LH normal | LH low | LH normal | LH low | |||
n = 906 | n = 51 | n = 137 | n = 47 | |||
Woman’s age | 29(27–32) | 30(27–31) | 0.555 | 29(27–31) | 30(27–31) | 0.843 |
BMI | 21.48(19.53–23.84) | 23.44(21.34–25.95) | < 0.001 | 22.96(20.945–25.91) | 23.42(21.03–25.04) | 0.935 |
Duration of infertility | 3(2–5) | 3(2–5) | 0.612 | 3(2–5) | 3(2–5) | 0.841 |
Infertility type | 0.452 | 0.594 | ||||
Primary infertility | 528(58.3) | 27(52.9) | 79(57.7) | 25(53.2) | ||
Secondary infertility | 378(41.7) | 24(47.1) | 58(42.3) | 22(46.8) | ||
FSH | 6.825(5.96–7.85) | 5.62(5.06–6.91) | < 0.001 | 5.96(5.46–6.67) | 5.98(5.13–6.96) | 0.642 |
LH | 5.46(3.92–7.93) | 3.35(2.6–4.78) | < 0.001 | 4.16(2.99–5.49) | 3.69(2.71–5.19) | 0.215 |
E2 | 47(36–59) | 44(32–54) | 0.085 | 44(34–58) | 42(32–53) | 0.210 |
P | 0.58(0.40–0.88) | 0.50(0.27–0.76) | 0.042 | 0.57(0.37–0.795) | 0.50(0.29–0.81) | 0.278 |
AMH | 6.89(5.01–9.69) | 6.35(4.64–9.82) | 0.456 | 6.86(4.94–9.76) | 6.47(4.66–10.21) | 0.723 |
AFC | 26(20–33) | 23(17–30) | 0.061 | 24(16.5–30) | 24(18–30) | 0.967 |
GN dose | 1500(1350–1950) | 2000(1575–2325) | < 0.001 | 1888(1500–2250) | 1950(1538–2275) | 0.460 |
GN days | 10(9–10) | 10(9–11) | 0.002 | 10(9–11) | 10(9–11) | 0.808 |
Fertilization method | 0.726 | 0.713 | ||||
IVF | 728(80.4) | 42(82.4) | 114(83.2) | 38(80.9) | ||
ICSI | 178(19.6) | 9(17.6) | 23(16.8) | 9(19.1) |