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• W2949416904 abstract "Abstract Background Perinatally-acquired HIV infection commonly causes stunting in children, but how this affects bone and muscle development is unclear. We investigated differences in bone and muscle mass and muscle function between children with HIV (CWH) and uninfected children. Setting Cross-sectional study of CWH (6–16 years) receiving antiretroviral therapy (ART) for >6 months and children in the same age-group testing HIV-negative at primary health clinics in Zimbabwe. Methods From Dual-energy X-ray Absorptiometry (DXA) we calculated total-body less-head (TBLH) Bone Mineral Content (BMC) for lean mass adjusted-for-height (TBLH-BMC LBM ) Z-scores, and lumbar spine (LS) Bone Mineral Apparent Density (BMAD) Z-scores. Results The 97 CWH were older (mean age 12.7 vs . 10.0 years) and therefore taller (mean height 142cm vs . 134cm) than those 77 uninfected. However, stunting (height-for-age Z-score≤-2) was more prevalent in CWH (35% vs . 5%, p <0.001). Amongst CWH, 15% had low LS-BMAD (Z-score ≤-2) and 13% had low TBLH-BMC LBM , vs. 1% and 3% respectively in those uninfected (both p ≤0.02). After age, sex, height and puberty adjustment, LS-BMAD was 0.33 SDs (95%CI −0.01, 0.67; p =0.06) lower in CWH, with no differences in TBLH-BMC LBM , lean mass or grip strength by HIV status. However, there was a strong relationship between age at ART initiation and both LS-BMAD Z-score (r=-0.33, p =0.001) and TBLH-BMC LBM Z-score (r=-0.23, p =0.027); for each year ART initiation was delayed a 0.13 SD reduction in LS-BMAD was seen. Conclusion Size-adjusted low bone density is common in CWH. Delay in initiating ART adversely affects bone density. Findings support immediate ART initiation at HIV diagnosis." @default.
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• W2949416904 date "2019-03-08" @default.
• W2949416904 modified "2023-09-23" @default.
• W2949416904 title "Older age at Initiation of Antiretroviral Therapy Predicts Low Bone Mineral Density in Children with perinatally-infected HIV in Zimbabwe" @default.
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• W2949416904 doi "https://doi.org/10.1101/565143" @default.
• W2949416904 hasPublicationYear "2019" @default.
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