Table 3.
Pregnancy outcome (live birth, miscarriage) by MC characteristics (n = 1394)
| crude OR | adj. ORa |
P value (wald's test) |
P value (LR-test) |
||
|---|---|---|---|---|---|
| Menstrual Cycle Length | 0.33 | ||||
| Regular | 1 | 1 | |||
| Short | 1.74 (0.88, 3.44) | 1.71 (0.85, 3.42) | 0.13 | ||
| Long | 0.99 (0.53, 1.85) | 0.97 (0.51, 1.84) | 0.92 | ||
| Irregular | 1.31 (0.69, 2.48) | 1.23 (0.64, 2.38) | 0.53 | ||
| Menstrual Blood Color | 0.41 | ||||
| Dark Red | 1 | 1 | |||
| Bright Red | 0.92 (0.57, 1.49) | 1.01 (0.6, 1.71) | 0.97 | ||
| Light Red | 2.28 (0.89, 5.85) | 2.39 (0.91, 6.28) | 0.08 | ||
| Unknown | 1.03 (0.41, 2.55) | 1.01 (0.40, 2.53) | 0.99 | ||
| Blood Clots, Y | 1.34 (0.85, 2.11) | 1.26 (0.77, 2.07) | 0.35 | 0.35 |
Notes: aAdjusted for age (≤ 25, 25-30, 30-35, 35-45), education level (high school or less, bachelor, master/doctor), age at menarche (continuous variable), and abortion history (0, 1-2, ≥ 3 times). Adj: adjusted; MC: menstrual cycle; OR: odds ratio; LR-test: likelihood ratio test.