{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,1]],"date-time":"2026-08-01T04:17:38Z","timestamp":1785557858807,"version":"3.56.0"},"reference-count":30,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2010,12,31]],"date-time":"2010-12-31T00:00:00Z","timestamp":1293753600000},"content-version":"vor","delay-in-days":183,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Acta Obstet Gynecol Scand"],"published-print":{"date-parts":[[2010,7]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p><jats:italic>Background.<\/jats:italic> Excessive use of cesarean sections (CSs) is a serious problem worldwide. <jats:italic>Objective.<\/jats:italic> To estimate the frequency and identify factors associated with cesarean deliveries in Brazil. <jats:italic>Design.<\/jats:italic> Cross\u2010sectional study conducted in 2006\u20132007 as part of the third edition of the Children's and Women's National Demographic and Health Survey. <jats:italic>Setting.<\/jats:italic> Brazil. <jats:italic>Sample.<\/jats:italic> Brazilian women in reproductive age. <jats:italic>Methods.<\/jats:italic> Socioeconomic and demographic data were utilized, including maternal age, education level, per capita income, skin color, smoking habit, marital status, age at first delivery, parity, and type of prenatal services. <jats:italic>Main outcome measures.<\/jats:italic> Adjusted estimate of the prevalence ratios of the type of delivery performed (cesarean or vaginal). <jats:italic>Results.<\/jats:italic> Cesarean prevalence was 43.9% (95% CI: 40.9\u201346.9), 68.7% for women who had per capita income greater than US$ 125 per month, and 77.2% for those who had attended private or privately insured prenatal services. In the adjusted analysis, the variables that presented significant prevalence ratios (95% confidence interval) were macro\u2010region [southeast = 1.45 (1.21\u20131.73); south = 1.48 (1.24\u20131.77), and midwest = 1.43 (1.21\u20131.71)], maternal age above 25 years [26\u201330 years = 1.57 (1.25\u20131.97); \u2265 31 years = 1.77 (1.39\u20132.27)], education levels \u2265 9 years (PR = 1.86, 95% CI: 1.55\u20132.23), and having attended private or privately insured prenatal services (PR = 1.87, 95% CI: 1.65\u20132.12) and parity [primipara = 1.87 (1.47\u20132.36)]. <jats:italic>Conclusions.<\/jats:italic> CS rates are generally very high in Brazil. 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