Severe maternal morbidity: a case-control study in Maranhao, Brazil.

Reprod Health · 2013 · PMC3608313 · PMID 23399443

Europe PMC DOI

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The following factors remained statistically associated at the end of the analysis: age equal or over 35 years (OR=3.11; 95% CI:1.53-6.31), previous hypertension (OR=2.52; 95% CI:1.09-5.80), history of abortion (borderline significance–OR=1.61; 95% CI:0.97-2.68), 4–5 prenatal consultations (OR=1.78; 95% CI:1.05-3.01) and 1–3 prenatal consultations (OR=1.89; 95% CI:1.03-3.49).

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