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Cesarean sections in Piauí State: trend and associated factors in the period 2000-2011, Brazil
Alberto Madeiro1, Andréa Cronemberger Rufino1, Aline Oliveira Dos Santos1
1Universidade Estadual do Piauí, Núcleo de Pesquisa e Extensão em Saúde da Mulher, Teresina-PI, Brasil.
Insights
Cesarean section rates significantly increased in Piauí, Brazil, between 2000 and 2011. Higher rates were observed in women over 40, with more schooling, and those with better socioeconomic status, even with low obstetric risk.
Area of Science:
- Public Health
- Epidemiology
- Maternal Health
Background:
- Cesarean section rates are a global public health concern.
- Understanding regional trends and associated factors is crucial for targeted interventions.
Purpose of the Study:
- To analyze trends in cesarean section proportions in Piauí State, Brazil, from 2000 to 2011.
- To identify factors associated with cesarean sections in this region.
Main Methods:
- Time series and cross-sectional study design.
- Utilized data from the Information System on Live Births (Sinasc) for institutional births.
- Analyzed data for primiparous women.
Main Results:
- Cesarean section proportion rose from 34.4% in 2000 to 52.1% in 2011 (APC +4.4%).
- Factors associated with higher cesarean rates included: maternal age over 40, >12 years of schooling, ≥7 prenatal visits, residing in large municipalities (>300,000 inhabitants), and higher Human Development Index.
- White-skinned women also showed a higher proportion of cesarean sections.
Conclusions:
- Cesarean section occurrence was high and more frequent among women with low obstetric risk.
- These findings highlight potential overuse of cesarean sections in Piauí, particularly in specific demographic and socioeconomic groups.
Objective:
to analyze trends in cesarean sections proportion and associated factors in Piauí State, Brazil, from 2000 to 2011.
Methods:
this is a time series and cross-sectional study, with data of all institutional childbirths in primiparous, recorded on the Information System on Live Births (Sinasc).
Results:
cesarean sections proportion increased from 34.4% in 2000 to 52.1% in 2011 (annual percentage change +4.4; 95%CI 3.6;5.1); white-skinned women (PR=1.72; 95%CI 1.63;1.86), over 40 years (PR=2.17; 95%CI 2.09;2.28), with more than 12 years of schooling (PR=1.86; 95%CI 1.77;1.96), who attended 7 or more prenatal care appointments (PR=2.08; 95%CI 1.97;2.18), residents in municipalities with over 300,000 inhabitants (PR=1.68; 95%CI 1.62;1.80) and with higher Human Development Index (PR=1.61; 95%CI 1.51;1.73) presented the highest cesarean sections proportion.
Conclusions:
the occurrence of cesarean sections was high and more frequent in women with low obstetric risk.

