Table 5. Factors associated with cesarean section without labor in women aged ≥ 35 years (n = 2,460), by type of financing of labor, Brazil, 2011–2012.
| Variables | Public Healthcare | Private Healthcare | ||||
|---|---|---|---|---|---|---|
| OR (IC 95%) | Model 1a AOR (IC 95%) | Model 2b AOR (IC 95%) | OR (IC 95%) | Model 1a AOR (IC 95%) | Model 2b AOR (IC 95%) | |
| Maternal Characteristics | ||||||
| Maternal schooling | ||||||
| ≤ 7 years | 1.00 (ref.) | 1.00 (ref.) | - | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) |
| 8–10 years | 1.55 (1.07–2.24) | 1.21 (0.78–1.87) | - | 2.93 (1.08–7.94) | 3.39 (1.18–9.72) | 3.42 (1.18–9.92) |
| ≥ 11 years | 1.92 (1.41–2.63) | 1.29 (0.89–1.84) | - | 3.42 (1.49–7.84) | 1.42 (0.65–3.08) | 1.42 (0.65–3.09) |
| Skin color | ||||||
| White | 1.00 (ref.) | 1.00 (ref.) | - | - | - | - |
| non-white | 1.42 (1.07–1.87) | 1.01 (0.72–1.42) | - | - | - | - |
| Prenatal and Childbirth Characteristics | ||||||
| Same doctor PN and childbirth | ||||||
| No | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) |
| Yes | 6.03 (3.98–9.16) | 4.67 (2.67–8.18) | 4.97 (2.86–8.63) | 8.33 (4.20–16.54) | 4.73 (2.25–9.91) | 4.66 (2.10–10.34) |
| Search for healthcare unit for childbirth | ||||||
| Yes | 1.00 (ref.) | 1.00 (ref.) | - | 1.00 (ref.) | 1.00 (ref.) | - |
| No | 1.85 (1.35–2.53) | 1.31 (0.91–1.88) | - | 2.55 (1.10–5.92) | 0.93 (0.28–3.08) | - |
| Classification obstetric risk | ||||||
| Low | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | - | - | - |
| High | 1.61 (1.22–2.12) | 1.97 (1.45–2.66) | 1.94 (1.44–2.62) | - | - | - |
| Initial preference for the type of childbirth | ||||||
| Vaginal / no preference | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) |
| Cesarean | 2.60 (2.05–3.30) | 1.63 (1.21–2.19) | 1.63 (1.22–2.19) | 4.27 (2.43–7.51) | 2.39 (1.12–5.12) | 2.40 (1.11–5.17) |
| Parity | ||||||
| Multipara without previous CS | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) | 1.00 (ref.) |
| Nulliparous | 6.57 (4.28–10.09) | 5.53 (3.47–8.80) | 6.17 (3.93–9.67) | 13.32 (6.46–27.48) | 10.01 (4.53–22.48) | 10.08 (4.50–22.60) |
| Multipara with previous CS = 1 | 6.52 (4.51–9.42) | 5.49 (3.57–8.44) | 5.73 (3.80–8.65) | 23.93 (9.6–59.1) | 12.97 (5.46–30.80) | 12.97 (5.48–30.7) |
| Multipara with previous CS ≥ 2 | 40.82 (19.83–84.04) | 31.34 (14.67–66.96) | 32.29 (15.1–68.9) | 19.98 (5.6–70.8) | 9.47 (2.28–39.36) | 9.43 (2.27–39.1) |
CS: cesarean section; PN: prenatal care; ref.: reference.
a Model adjusted for all variables included in the gross analysis.
b Model adjusted only by the variables that remained in the final model.
Interaction was tested for: the same professional during the PN and childbirth*initial preference through childbirth, adequacy of the PN*same professional during the PN and childbirth, age*education schooling, education schooling*skin color, adequacy of the PN*obstetric risk.