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Revista Colombiana de Obstetricia y Ginecología

Print version ISSN 0034-7434On-line version ISSN 2463-0225


JARAMILLO-PRADO, John Jairo; LOPEZ-GIRALDO, Irma Rocío  and  ARANGO-GOMEZ, Fernando. Factors associated with preterm deliveries in third-level health centres in Manizales from July 2004 to June 2005. Rev Colomb Obstet Ginecol [online]. 2006, vol.57, n.2, pp.74-81. ISSN 0034-7434.

The incidence of preterm delivery is estimated to be 10% to 11% of all pregnancies, this being the main cause of morbidity and perinatal mortality which has remained unchanged during the past few decades. Objective: identifying factors associated with obstetric patients diagnosed as suffering from preterm delivery in third-level attention centres in Manizales. Methods: a clinical study of cases and controls was carried out in the Villapilar ESE Rita Arango Alvarez del Pino clinic. This included 232 patients with 24- to 36-week delivery (cases) and 232 patients with 37-week delivery or longer (controls) from July 2004 to June 2005. Risk factors associated with preterm delivery were determined by OR and 95% confidence interval. Results: there was statistical association between non-prenatal care (OR 5.1 IC95% 2.41-11.01), preeclampsia during pregnancy (OR 4.15 IC95% 1.70-10.16), premature rupture of membranes (OR 3.17 IC95% 1.92-5.23), multiple gestation (OR 7.65 IC95% 2.77-21.16) and previous preterm delivery (OR 5.59 IC95% 2.46-12.73). There was no significant statistical difference regarding age, marital status, origin, socio-economical status, number of pregnancies, family planning, sexually transmitted diseases and harmful habits among the groups of cases and controls. Conclusions: the main factors associated with preterm delivery in third-level attention centres in Manizales were previous preterm delivery, inadequate prenatal care and the association of premature rupture of membranes, preeclampsia and multiple gestation.

Keywords : preterm delivery; risk factor; case-control studies.

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