Ethnic differentials in neonatal and postneonatal mortality: A birth cohort analysis by a binary variable multiple regression method

Abstract
Ethin differentials in neonatal and postneonatal mortality in a birth cohort of Spanish surname, white (non-Spanish), and nonwhite infants in Houston, Texas [USA] were analyzed with legitimacy status, mother''s age, birth order and birth weight controlled separately and simultaneously. In the presence of all factors, Spanish surname and non-Spanish white infants had a neonatal mortality risk about 13% below average; nonwhite (primarily black) infants, 30% above average. Adjusted for all 4 factors, the risk for nonwhites was 8% below average and for Spanish surname infants 2% below average, while it rose to almost 5% above average for non-Spanish white infants. Birth weight and legitimacy status were responsible for most of the change. The 4 factors had less effect on postneonatal mortality, with legitimacy status seeming to have the greatest influence.

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