[Risk factors for perinatal mortality in Recife, Pernambuco State, Brazil, 2003].

The aim of this study was to identify and analyze risk factors for perinatal mortality in Recife, Pernambuco State, Brazil, in 2003, using a multilevel hierarchical model. In this case-control study, cases consisted of all perinatal deaths in 2003 in singleton infants with birth weight > 500g and without congenital malformations. The controls were live births from December 26, 2002, to December 31, 2003, with the same characteristics as the study group, but who survived > 6 days. By using record linkage techniques, 403 cases and 1,612 controls were obtained. All variables, when submitted jointly to multiple logistic regression, showed statistical significance in decreasing order of risk, as follows: prematurity (OR = 18.23), low birth weight (OR = 4.90), maternal age > 35 (OR = 1.97), delivery in public hospitals (OR = 1.93), and maternal schooling < 4 years (OR = 1.78).