American journal of preventive medicine
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We suggest an explanation for a pediatric paradox: the low-birthweight-specific (LBW) neonatal mortality rate (NMR) for black infants is less than the NMR for white infants, even though the overall NMR for black infants is about twice the overall NMR for white infants. Analyzing the Delivery Interview Program data set--a large matrix of information collected at the Boston Hospital for Women (now the Brigham and Women's Hospital)--we found that, overall, black infants' gestations are about four days shorter than white infants'. However, after stratifying by birthweight, we found a reversal in our data, namely, LBW (< 2,500 g) black infants' gestations are seven days longer than the gestations of LBW white infants. We believe that this increased chronological maturity may account for some of the survival advantage of the LBW black infant compared with the LBW white infant of the same weight.
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Low-income, urban, African-American and Hispanic youth have been identified as a group that may be at risk for the spread of human immunodeficiency virus (HIV). This article evaluates general knowledge of acquired immunodeficiency syndrome (AIDS), knowledge of routes of sexual transmission of HIV, risk behaviors related to sex, and perceived susceptibility to AIDS of urban low-income youth in Detroit. We drew data from a household probability sample of 1,435 of these Detroit youth. ⋯ Young Hispanic women reported the latest initiation of sexual activity and the fewest partners. A substantial minority of the youth were concerned about becoming infected with HIV, and these concerns were related to risk behavior. We demonstrate from these data a need for interventions in this population to correct misconceptions and to promote use of condoms and other safer sexual behaviors.