Differing postneonatal mortality rates of African-American and white infants in Chicago: an ecologic study.

Objectives: This study sought to determine whether neighborhood impoverishment explains the racial disparity in urban postneonatal mortality rates.

Methods: Stratified and multivariate logistic regression analyses were performed on the vital records of all African-Americans and whites born in Chicago by means of a linked 1992-1995 computerized birth-death file with appended 1990 U.S.