Table 1 Patient characteristics before and after propensity score matching (PSM)
Before PSM | P | After PSM | P | |||
|---|---|---|---|---|---|---|
Endometrioma-associated subfertility (n = 58) | Unexplained subfertility (n = 880) | Endometrioma-associated subfertility (n = 56) | Unexplained subfertility (n = 173) | |||
Maternal age (years) | 30.78 (4.02) | 30.22 (3.71) | 0.272 | 30.46 (3.72) | 30.08 (3.38) | 0.466 |
Paternal age (years) | 32.43 (4.67) | 31.79 (4.36) | 0.283 | 31.98 (4.10) | 31.45 (4.26) | 0.409 |
BMI (kg/m2) | 21.86 (2.83) | 22.00 (3.21) | 0.755 | 21.85 (2.88) | 21.48 (2.77) | 0.403 |
Subfertility time (months) | 32.38 (20.26) | 33.12 (17.40) | 0.756 | 32.89 (20.40) | 32.46 (16.01) | 0.833 |
Primary infertility (%) | 40 (69.0) | 554 (63.0) | 0.358 | 39 (69.6) | 119 (68.8) | 0.904 |
Nulliparity (%) | 53 (91.4) | 765 (93.5) | 0.326 | 52 (92.9) | 158 (91.3) | 0.719 |
AFC (n) | 10.00 (4.78) | 12.75 (5.58) | < 0.001 | 10.21 (4.72) | 10.87 (3.79) | 0.293 |
Day-3 FSH (mIU/mL) | 7.31 (1.79) | 7.04 (1.75) | 0.250 | 7.31 (1.82) | 7.32 (1.60) | 0.973 |
Day-3 LH (mIU/mL) | 4.39 (1.56) | 4.62 (2.29) | 0.460 | 4.40 (1.58) | 4.71 (3.26) | 0.485 |
Semen concentration (106/mL) | 62.54 (27.01) | 62.93 (27.27) | 0.916 | 62.78 (27.36) | 62.12 (26.03) | 0.872 |
Semen motility (%) | 54.26 (13.77) | 57.54 (13.18) | 0.067 | 54.44 (13.93) | 54.90 (12.32) | 0.815 |
Normal semen morphology (%) | 5.64 (1.66) | 5.48 (1.70) | 0.493 | 5.70 (1.66) | 5.54 (1.93) | 0.594 |