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  • Title: Risk factors for diarrhea-associated infant mortality in the United States, 2005-2007.
    Author: Mehal JM, Esposito DH, Holman RC, Tate JE, Callinan LS, Parashar UD.
    Journal: Pediatr Infect Dis J; 2012 Jul; 31(7):717-21. PubMed ID: 22411052.
    Abstract:
    BACKGROUND: Diarrhea-associated deaths among US children increased from the mid-1980s through 2006, particularly among infants. Understanding risk factors for diarrhea-associated death could improve prevention strategies. METHODS: Records of singleton infants with diarrhea listed anywhere on the death certificate were selected from the US Linked Birth/Infant Death data for the period, 2005 to 2007; characteristics of these infants were compared with those of infants who survived their first year. RESULTS: During 2005 to 2007, 1087 diarrhea-associated infant deaths were reported; 86% occurred among low birth weight (LBW, <2500 g) infants. Compared with normal birth weight (NBW, ≥2500 g) infants, LBW infants had a greater mortality rate (risk ratio: 91.9, 95% confidence interval: 77.4-109.0) and younger median age at death (7 versus 15 weeks, P<0.0001). The most common codiagnoses for diarrhea-associated death among LBW and NBW infants were sepsis (26%) and volume depletion (20%), respectively. Among LBW infants, 97% of diarrhea-associated deaths occurred in inpatient settings, whereas 27% of NBW infant deaths occurred in outpatient settings and 5.3% in the decedent's home. Male sex, black race, unmarried status and low 5-minute Apgar score (<7) increased mortality odds among LBW infants whereas, among NBW infants, low 5-minute Apgar score, black race, young maternal age (<25 years) and high birth order (third or more) increased mortality odds. CONCLUSIONS: Efforts to reduce diarrhea-associated morality should focus on understanding and improving management of diarrhea in vulnerable LBW infants. For prevention of diarrhea-associated deaths in NBW infants, educating mothers who fit the high-risk profile regarding home hydration therapy and timely access to medical treatment is important.
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