Risk factors for cesarean section by category of health service.
OBJECTIVE
To analyze the rate of cesarean section and differences in risk factors by category of health service, either public or private.


METHODS
A cross-sectional study was carried out including all pregnant women in labor admitted to hospitals in the city of Rio Grande, Southern Brazil, between January 1 and December 31, 2007. A pre-coded and pre-tested questionnaire was used to collect on social, demographic, obstetric and newborn care information. Two regression models were constructed: one for public users and the other one for private ones. Poisson regression was used in each model in the multivariate analysis. Prevalence rates and 95% confidence intervals were calculated for each adjusted factor.


RESULTS
The rate of cesarean section was 43% and 86% among public and private users. Sociodemographic factors and twin births have a more significant impact among public users as well as number of pregnancies (25% vs. 13% reduction in public and private users, respectively) and previous cesarean section (86% vs. 24% increase in public and private users, respectively). Prenatal care visits and hospital admissions affected the outcome only in women users of public services.


CONCLUSIONS
Cesarean section rates were high in both groups studied, but it was twice as high among women cared in the private sector. Associated factors differ in magnitude by category of service used.
Divisão População e Saúde, Faculdade de Medicina, Universidade Federal do Rio Grande, Rio Grande, RS, Brasil.
Raúl Andrés
RA
Mendoza-Sassi
Juraci Almeida
JA
Cesar
Patricia Rodrigues da
PR
Silva
Giovana
G
Denardin
Mariana Mendes
MM
Rodrigues
D000293:Adolescent; D000328:Adult; D001938:Brazil / Q000453:epidemiology; D002585:Cesarean Section / Q000706:statistics & numerical data*; D016021:Epidemiologic Studies; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D011247:Pregnancy; D017149:Private Sector / Q000706:statistics & numerical data*; D017150:Public Sector / Q000706:statistics & numerical data*; D012959:Socioeconomic Factors; D055815:Young Adult