Table II. Outcomes stratified by Body Mass Index category.
| Underweight (n = 85) |
Normal (n = 287) |
Overweight (n = 112) |
Obese (n = 67) |
Morbid Obesity (n = 11) |
P value* | |
|---|---|---|---|---|---|---|
| Chorioamnionitis | ||||||
| N (%) | 13 (15.3%) | 44 (15.3%) | 24 (21.4%) | 14 (20.9%) | 1 (9.09%) | 0.4793 |
| OR (95% CI) | 0.98 (0.51-1.95) | - | 1.51 (0.87-2.62) | 1.46 (0.75-2.85) | 0.55 (0.01-4.07)¶ | |
| Postpartum Endometritis | ||||||
| N (%) | 7 (8.3%) | 36 (12.5%) | 12 (10.7%) | 11 (16.7%) | 2 (18.18%) | 0.4794 |
| OR (95% CI) | 0.63 (0.27 - 1.48) | - | 0.83 (0.42 - 1.67) | 1.39 (0.67 -2.90) | 1.54 (0.16 - 7.88) ¶ | |
| Infectious Morbidity | ||||||
| N (%) | 12 (14.3%) | 41 (14.3%) | 16 (14.3%) | 16 (23.9%) | 2 (18.2%) | 0.3846 |
| OR (95% CI) | 1.00 (0.50 - 2.00) | - | 1.00 (0.53 - 1.86) | 1.87 (0.98 - 3.60) | 1.33 (0.13 - 6.74) ¶ | |
| Neonatal Composite Outcome | ||||||
| N (%) | 42 (49.4%) | 126 (44.1%) | 52 (46.4%) | 37 (55.2%) | 8 (72.7%) | 0.2092 |
| OR (95% CI) | 1.24 (0.76 - 2.01) | - | 1.10 (0.71- 1.71) | 1.57 (0.92 - 2.67) | 3.39 (0.79 - 20.14) ¶ | |
| Days from rupture to delivery | ||||||
| Median (interquartile range) | 5 (2-11) | 4 (2-11) | 6 (2-12) | 4 (2-12) | 7 (2-11) | 0.8869§ |
| Hazard Ratio (95% CL) | 1.04 (0.82 - 1.33) | - | 0.92 (0.74 - 1.14) | 0.97 (0.85 - 1.11) | 1.01 (0.82 - 1.23) |
*
P values were calculated from chi-square test across all BMI groups.
¶
95% exact confidence intervals.
§
P value was calculated from Kruskal-Wallis non-parametric test across all BMI groups.