Table 3: Variables of reproductive history and gestational factors predicting prematurity - MEJC, Brazil, 2017.
Variable | Odds ratio | IC 95% | p-value | R2 Cox & snell |
Reproductive history | 0.7% | |||
Previous vaginal delivery | ||||
None | 1.00 | |||
1 to 2 | 1.23 | 1.04-1.45 | 0.019 | |
3 or more | 0.90 | 0.68-1.20 | 0.461 | |
Previous caesarian section | ||||
None | 1.00 | |||
1 to 2 | 0.70 | 0.58-0.85 | < 0.001 | |
3 or more | 0.76 | 0.38-1.51 | 0.428 | |
Gestational factors | 6.7% | |||
Type of pregnancy | ||||
Single | 1.00 | |||
Multiple | 5.41 | 3.79-7.73 | < 0.001 | |
Prenatal care | ||||
Adequate | 1.00 | |||
Inadequate | 2.13 | 1.68-2.70 | 0.001 | |
Presentation | ||||
Cephalic | 1.00 | |||
Breech/shoulder | 3.01 | 2.25-4.03 | < 0.001 | |
Type of birth | ||||
Vaginal | 1.00 | |||
Cesarean section | 0.66 | 0.57-0.78 | < 0.001 |