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  • Title: Neurodevelopment of breastfed HIV-exposed uninfected and HIV-unexposed children in South Africa.
    Author: le Roux SM, Donald KA, Brittain K, Phillips TK, Zerbe A, Nguyen KK, Strandvik A, Kroon M, Abrams EJ, Myer L.
    Journal: AIDS; 2018 Aug 24; 32(13):1781-1791. PubMed ID: 29794831.
    Abstract:
    OBJECTIVES: To assess neurodevelopment of breastfed HIV-exposed uninfected (HEU) and breastfed HIV-unexposed children in the context of universal maternal antiretroviral therapy (ART). DESIGN: Prospective study with antenatal enrolment and follow-up of breastfeeding HEU and HIV-unexposed mother-infant pairs through 12-18 months postpartum. SETTING: Peri-urban community, Cape Town, South Africa. PARTICIPANTS: HEU (n = 215) and HIV-unexposed (n = 306) children. MAIN OUTCOME MEASURES: Cognitive, motor and language development at median 13 (interquartile range 12-14) months of age: continuous and dichotomous Bayley Scales of Infant and Toddler Development Third Edition (delay defined as composite score <85). RESULTS: Incidence of preterm delivery (<37 weeks) was similar among HEU and HIV-unexposed children (11 vs. 9%, P = 0.31; median gestation 39 weeks); 48% were boys. Median breastfeeding duration was shorter among HEU vs. HIV-unexposed children (6 vs. 10 months). All HIV-infected mothers initiated lifelong ART (tenofovir-emtricitabine-efavirenz) antenatally. HEU (vs. HIV-unexposed) children had higher odds of cognitive delay [odds ratio (OR) 2.28 (95% confidence interval (CI) 1.13-4.60)] and motor delay [OR 2.10 (95% CI 1.03-4.28)], but not language delay, in crude and adjusted analysis. Preterm delivery modified this relationship for motor development: compared with term HIV-unexposed children, term HEU children had similar odds of delay, preterm HIV-unexposed children had five-fold increased odds of delay (adjusted OR 4.73, 95% CI 1.32; 16.91) and preterm HEU children, 16-fold increased odds of delay (adjusted OR 16.35, 95% CI 5.19; 51.54). CONCLUSION: Young HEU children may be at increased risk for cognitive and motor delay despite universal maternal ART and breastfeeding; those born preterm may be particularly vulnerable.
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