[Risk factors for pre-term birth in Londrina, Paraná State, Brazil].
The objective of this study was to identify risk factors associated with pre-term birth among live births in a hospital in Londrina, Paraná 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.
Centro de Ciências da Saúde, Universidade Estadual de Londrina, Londrina, Brasil. arigosilva@gmail.com
Ana Maria Rigo
AM
Silva
Marcia Furquim
MF
de Almeida
Tiemi
T
Matsuo
Darli Antonio
DA
Soares
D000328:Adult; D000367:Age Factors; D000428:Alcohol Drinking / Q000009:adverse effects; D001938:Brazil / Q000453:epidemiology; D016022:Case-Control Studies; D005260:Female; D005865:Gestational Age; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D050498:Live Birth / Q000453:epidemiology*; D011247:Pregnancy; D047928:Premature Birth / Q000453:epidemiology*; D011295:Prenatal Care / Q000706:statistics & numerical data; D012307:Risk Factors; D012907:Smoking / Q000009:adverse effects; D012959:Socioeconomic Factors; D014505:Urban Population / Q000706:statistics & numerical data