Table 2.
Adjusted odds ratios for pregnancy risks
| Underweight (BMI < 18.5) | Normal (18.5 ≤ BMI < 23) | Overweight (23 ≤ BMI < 25) | Obese (25 ≤ BMI) | |
|---|---|---|---|---|
| Maternal complications | ||||
| Gestational diabetes | 0.09 (0.01-0.66) | 1.00 | 1.58 (0.80-3.15) | 4.46 (2.63-7.59) |
| Hypertensive disorder | 1.08 (0.52-2.23) | 1.00 | 2.26 (1.11-4.58) | 2.53 (1.26-5.07) |
| Placenta abruption | 0.74 (0.20-2.73) | 1.00 | 0.29 (0.04-2.38) | 0.18 (0.02-1.66) |
| IIOC | 1.32 (0.44-3.93) | 1.00 | 1.34 (0.41-4.38) | 3.70 (1.50-9.12) |
| Preterm delivery | 0.40 (0.19-0.86) | 1.00 | 1.10 (0.57-2.10) | 0.58 (0.26-1.28) |
| PPROM | 1.15 (0.57-2.32) | 1.00 | 0.95 (0.47-1.94) | 1.15 (0.57-2.32) |
| Hematologic disorder | 2.60 (0.72-9.40) | 1.00 | 2.30 (0.46-1.65) | - |
| Neonatal complications | ||||
| FDIU | 3.94 (0.86-18.02) | 1.00 | 2.86 (0.46-17.62) | 0.66 (0.06-7.28) |
| Anomaly | 1.30 (0.76-2.22) | 1.00 | 1.14 (0.57-2.30) | 0.73 (0.30-1.74) |
| IUGR | 1.36 (0.64-2.88) | 1.00 | 0.57 (0.13-2.47) | 1.83 (0.72-4.67) |
| SGA | 1.38 (1.02-1.88) | 1.00 | 0.69 (0.42-1.13) | 1.08 (0.69-1.69) |
| LGA | 0.46 (0.18-1.19) | 1.00 | 1.79 (0.92-3.48) | 2.77 (1.49-5.16) |
| Thick meconium-stained amniotic fluid | 1.03 (0.61-1.72) | 1.00 | 2.12 (1.18-3.79) | 0.86 (0.36-2.03) |
| Low Apgar score | 1.39 (0.91-2.12) | 1.00 | 1.96 (1.20-3.18) | 1.98 (1.19-3.29) |
| NICU admission | 1.32 (0.79-2.20) | 1.00 | 1.42 (0.78-2.61) | 1.11 (0.57-2.16) |
Based on multiple logistic regression models adjusted for age, parity, numbers of fetuses, pregnancy (day), and medical history
BMI, body mass index; IIOC, incompetence of internal os of cervix; PPROM, preterm premature rupture of membrane; FDIU, fetal death in uterus; IUGR, intrauterine growth restriction; SGA, small for gestational age; LGA, large for gestational age; NICU, neonatal intensive care unit