Table 2.
Multiple logistic regression of primiparous assisted during labor in public hospitals, Brazil, 2011–2012 (N = 2487)
| Mode of delivery | |||||
|---|---|---|---|---|---|
| Crude OR b | Adjusted OR | 95 % CI | |||
| Lower | Upper | ||||
| Distal factors | |||||
| Macro region of Brazil | North | 2,2 | 2.5 | 1.3 | 4.6 |
| Northeast | 2,2 | 2.3 | 1.1 | 4.7 | |
| South | 2,5 | 2.8 | 1.4 | 5.5 | |
| Southeast a | 1 | 1 | - | - | |
| Midwest | 3,2 | 3.4 | 1.6 | 7.1 | |
| Intermediate factors | |||||
| Clinical or obstetrical conditions potentially associated with obstetric emergencies before childbirth | Yes | 2,7 | 2.7 | 1.7 | 4.4 |
| No a | 1 | 1 | - | - | |
| Prenatal counseling favorable for vaginal delivery | Yes | 0,4 | 0,5 | 0.3 | 0.6 |
| No a | 1 | 1 | - | - | |
| Decision on the type of delivery at the end of pregnancy | No | 3,4 | 3.5 | 2.6 | 4.5 |
| Yes, vaginal a | 1 | 1 | - | - | |
| Yes, cesarean | 13,6 | 12.1 | 7.1 | 20.7 | |
| Proximal factors | |||||
| Type of labor | Spontaneous a | 1 | 1 | - | - |
| Induced | 0,3 | 0,2 | 0,1 | 0,4 | |
| Cervical dilation at admission | ≥4 cm a | 1 | 1 | - | - |
| <4 cm | 1,6 | 2.1 | 1.4 | 3.3 | |
| Use of any of the good practices during labor | Yes | 0,2 | 0,3 | 0,2 | 0,5 |
| No a | 1 | 1 | - | - | |
| Use of spinal or epidural analgesia | Yes | 4,0 | 3.7 | 1.8 | 7.6 |
| No a | 1 | 1 | - | - | |
| Presence of at least one midwife during assistance with labor | No | 2,3 | 1.0 | 0.6 | 1.7 |
| Yes a | 1 | 1 | - | - | |
a Reference category
b All significative coeficients at 0,05