Unadjusted and adjusted logistic regression models showing relationship between mode of delivery and the metabolic syndrome in midlife: complete case analyses and analyses using multiply imputed data
| Complete case | Multiple imputations | |
|---|---|---|
| OR (95% CI) | OR (95% CI) | |
| Model 1: unadjusted | ||
| Mode of delivery | ||
| Vaginal (ref) | ||
| Emergency caesarean | 1.60 (1.42 to 1.80)*** | 1.60 (1.08 to 2.37)* |
| Elective caesarean | 0.92 (0.74 to 1.07) | 0.92 (0.57 to 1.50) |
| Model 2: adjusted† | ||
| Mode of delivery | ||
| Vaginal (ref) | ||
| Emergency caesarean | 2.18 (1.28 to 3.71)** | 1.51 (1.00 to 2.30)* |
| Elective caesarean | 1.00 (0.53 to 1.91) | 0.93 (0.56 to 1.56) |
| Cohort member's gender | ||
| Female (ref) | ||
| Male | 2.48 (2.18 to 2.82)*** | 2.58 (2.31 to 2.87)*** |
| Maternal age | ||
| Years | 0.98 (0.97 to 0.99)** | 0.98 (0.97 to 0.99)*** |
| Mother's educational level | ||
| High (ref) | ||
| Low | 1.48 (1.27 to 1.73)*** | 1.47 (1.30 to 1.67)*** |
| Smoking after the fourth month of pregnancy | ||
| No (ref) | ||
| Yes | 1.28 (1.11 to 1.46)** | 1.24 (1.10 to 1.39)*** |
| Maternal BMI before pregnancy | ||
| Normal weight (ref) | ||
| Underweight | 0.87 (0.64 to 1.20) | 0.97 (0.74 to 1.27) |
| Overweight | 1.19 (0.85 to 1.67) | 1.33 (0.99 to 1.78) |
| Obesity | 1.45 (0.94 to 2.24) | 1.61 (1.12 to 2.34)** |
| Hypertensive pathology during pregnancy | ||
| No (ref) | ||
| Yes | 1.24 (1.08 to 1.43)** | 1.18 (1.05 to 1.33)** |
| Birthweight | ||
| 10–90th centile (ref) | ||
| <10th centile | 1.05 (0.83 to 1.34) | 1.08 (0.88 to 1.32) |
| >90th centile | 0.92 (0.73 to 1.13) | 0.96 (0.78 to 1.12) |
*p≤0.05, **p≤0.01, ***p≤0.001.
†Also adjusted for: overcrowding, parity, previous pregnancy problems, total number of antenatal visits, gestational age, induced labour, PROM.
BMI, body mass index; PROM, premature rupture of the membranes.