Journal
CADERNOS DE SAUDE PUBLICA
Volume 25, Issue 10, Pages 2125-2138Publisher
CADERNOS SAUDE PUBLICA
DOI: 10.1590/S0102-311X2009001000004
Keywords
Premature Birth; Pregnancy; Risk Factors; Case-Control Studies
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The objective of this study was to identify risk factors associated with pre-term birth among live births in a hospital in Londrina, Parana State, Brazil. Cases consisted of 328 pre-term births, and controls were 369 births with gestational age greater than 37 weeks. A multiple hierarchical logistic regression analysis was carried out. There was a significant correlation (p < 0.05) between pre-term birth and the following variables: socioeconomic status (slum residence); low age of head-of-family; maternal BMI < 19 or > 30 kg/m2; history of prematurity; history of assisted reproduction; mothers in a relationship for less than two years; maternal stress; weekly maternal alcohol consumption; insufficient prenatal care; gestational complications such as bleeding, genital tract infection, altered amniotic fluid volume, high blood pressure, and hospital admission; and twin pregnancy. Regular walks during pregnancy were a protective factor. Improved quality of prenatal care and the identification of the above factors during pregnancy may help reduce premature birth.
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