Table 2.
Multivariate logistic analysis of the association between the variables and excessive weight loss
| Crude OR (95% CI) |
p | Adjusteda OR (95% CI) | p | |
|---|---|---|---|---|
| Maternal age | 1.06 (1.02, 1.10) | 0.001 | 1.07 (1.02, 1.11) | 0.002 |
| Prepregnancy BMI, kg/m2 | 1.04 (0.99, 1.09) | 0.13 | 1.04 (0.99, 1.09) | 0.15 |
| Primiparity | 2.01 (1.34, 3.02) | < 0.001 | 2.72 (1.69, 4.38) | < 0.001 |
| Infertility treatment | 2.28 (1.25, 4.15) | 0.007 | 1.27 (0.65, 2.52) | 0.49 |
| Maternal weight gain, kg | 0.99 (0.95, 1.03) | 0.58 | 1.00 (0.96, 1.05) | 0.91 |
| Hypertension | 1.47 (0.68, 3.18) | 0.32 | 1.15 (0.51, 2.59) | 0.74 |
| Diabetes | 1.45 (0.90, 2.34) | 0.14 | 1.40 (0.83, 2.35) | 0.21 |
| Use of MgSO4 in labor | 0.40 (0.08, 1.96) | 0.26 | 0.28 (0.06, 1.42) | 0.13 |
| Use of oxytocin in labor | 1.38 (0.89, 2.15) | 0.15 | 1.13 (0.68, 1.88) | 0.65 |
| Gestational weeks at delivery | 1.05 (0.86, 1.28) | 0.62 | 1.09 (0.87, 1.36) | 0.47 |
| Mode of delivery | ||||
| Vaginal delivery | 1 | 1 | ||
| intrapartum CS | 1.60 (0.83, 3.09) | 0.16 | 0.99 (0.48, 2.05) | 0.98 |
| antepartum CS | 1.77 (1.06, 3.00) | 0.030 | 2.00 (1.09, 3.65) | 0.024 |
| Postpartum hemorrhaging | 1.97 (1.18, 3.30) | 0.009 | 1.31 (0.71, 2.41) | 0.39 |
| Hemoglobin after delivery, g/dL | 0.83 (0.71, 0.97) | 0.019 | 0.93 (0.78, 1.12) | 0.45 |
| Birth weight of infant < 2500 g | 0.60 (0.28, 1.29) | 0.19 | 0.58 (0.26, 1.32) | 0.19 |
| Male | 1.03 (0.69, 1.53) | 0.83 | 1.05 (0.69, 1.60) | 0.82 |
| Use of infant formula or water before weight loss ≥10% | 0.95 (0.53, 1.69) | 0.86 | 0.65 (0.34, 1.23) | 0.18 |
Abbreviations: BMI body mass index, CS Caesarean section
a Adjusted for maternal age, primiparity, infertility treatment, antepartum Caesarean section, postpartum hemorrhaging, and the hemoglobin level after delivery