Table 2 Multivariate logistical regression of factors associated with cesarean births in Chiapas, 2011–2014
Cesarean (1 = yes, 0 = no) | Exp (B) | P > z | 95% Confidence interval | |
|---|---|---|---|---|
Lower | Upper | |||
Order of birth | ||||
First or second | − | − | − | − |
Third to fifth | 0.580a | 0 | 0.56 | 0.60 |
Sixth to tenth | 0.365a | 0 | 0.34 | 0.39 |
Eleventh or higher | 0.457a | 0 | 0.36 | 0.58 |
Maternal level of schooling | ||||
None or did not finish primary school | − | − | − | − |
Finished primary school | 1.079a | 0 | 1.04 | 1.12 |
Finished secondary school | 1.181a | 0 | 1.14 | 1.22 |
Finished high school | 1.457a | 0 | 1.40 | 1.51 |
University or graduate degree | 1.991a | 0 | 1.89 | 2.09 |
Maternal marital status | ||||
Married at any time | − | − | − | − |
Married | 1.042 | 0.5 | 0.91 | 1.19 |
Single | 1.168a | 0.03 | 1.02 | 1.34 |
Maternal age | ||||
< 17 | − | − | − | − |
18–24 | 1.039 | 0.1 | 1.00 | 1.08 |
25–34 | 1.356a | 0 | 1.30 | 1.42 |
35–44 | 2.031a | 0 | 1.92 | 2.15 |
≥ 45 | 2.288a | 0 | 1.77 | 2.95 |
Maternal health affiliation program | ||||
None | − | − | − | − |
IMSS | 1.323a | 0 | 1.20 | 1.46 |
ISSSTE | 1.384a | 0 | 1.15 | 1.66 |
PEMEX, SEDENA, or SEMAR | 1.570a | 0.03 | 1.05 | 2.34 |
Seguro Popular | 1.334a | 0 | 1.28 | 1.39 |
Other | 1.585a | 0 | 1.31 | 1.91 |
IMSS-Oportunidades | 1.089 | 0.1 | 1.00 | 1.19 |
Total number of prenatal checkups | ||||
0–1 | − | − | − | − |
2–5 | 2.180a | 0 | 1.99 | 2.39 |
≥ 6 | 2.593a | 0 | 2.36 | 2.85 |
Trimester of first prenatal checkup | ||||
None | − | − | − | − |
First | 0.572a | 0 | 0.52 | 0.63 |
Second | 0.517a | 0 | 0.47 | 0.57 |
Third | 0.483a | 0 | 0.43 | 0.54 |
Newborn weight, g | ||||
2500–3999 | − | − | − | − |
< 2500 | 1.271a | 0 | 1.20 | 1.35 |
≥ 4000 | 1.880a | 0 | 1.77 | 2.00 |
Gestational age, weeks | ||||
37–41 | − | − | − | − |
< 28 | 0.458a | 0 | 0.34 | 0.61 |
28–36 | 2.344a | 0 | 2.20 | 2.49 |
42–45 | 2.510a | 0 | 2.28 | 2.76 |
Facility where birth occurred | ||||
Secretary of Health | − | − | − | − |
IMSS-Oportunidades | 1.163a | 0 | 1.11 | 1.22 |
IMSS | 1.268a | 0 | 1.14 | 1.40 |
ISSSTE | 2.218a | 0 | 1.82 | 2.70 |
PEMEX, SEDENA, or SEMAR | 0.920 | 0.7 | 0.61 | 1.39 |
Other public facility | 2.864a | 0 | 2.36 | 3.47 |
Private medical facility | 10.131a | 0 | 9.58 | 10.72 |
Indigenous presence | ||||
Population with indigenous presence | − | − | − | − |
Indigenous presence | 1.407a | 0 | 1.32 | 1.50 |
Dispersed indigenous population | 0.690a | 0 | 0.65 | 0.73 |
Community Human Development Index | ||||
Low | − | − | − | − |
Middle low | 1.722a | 0.01 | 1.17 | 2.54 |
Middle high | 5.805a | 0 | 3.94 | 8.56 |
High | 4.786a | 0 | 3.23 | 7.08 |
Multiple pregnancy | ||||
No | − | − | − | − |
Yes | 4.329a | 0 | 3.91 | 4.79 |
Hospitalization (days) | ||||
0–1 | − | − | − | − |
2–7 | 1.250a | 0 | 1.21 | 1.29 |
8–30 | 1.104a | 0 | 1.07 | 1.14 |
31–99 | 1.016 | 0.4 | 0.98 | 1.05 |
≥ 100 | 1.078a | 0 | 1.03 | 1.12 |