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. 2018 Jan;37(1):71-77.
doi: 10.1097/INF.0000000000001715.

The Association of Fat and Lean Tissue With Whole Body and Spine Bone Mineral Density Is Modified by HIV Status and Sex in Children and Youth

Denise L Jacobson, Jane C Lindsey, Brent A Coull, Kathleen Mulligan, Priya Bhagwat, Grace M Aldrovandi; Pediatric AIDS Clinical Trials Group P1045 Team

The Association of Fat and Lean Tissue With Whole Body and Spine Bone Mineral Density Is Modified by HIV Status and Sex in Children and Youth

Denise L Jacobson et al. Pediatr Infect Dis J. 2018 Jan.

Abstract

Background: HIV-infected (HIV-pos) male children/youth showed lower bone mineral density at sexual maturity than HIV-uninfected (HIV-neg) females. It is not known whether complications of HIV disease, including abnormal body fat distribution, contribute to lower bone accrual in male HIV-pos adolescents.

Methods: In a cross-sectional study, we evaluated the relationship between body composition (fat and lean mass) and bone mass in HIV-pos and HIV-neg children/youth and determined if it is modified by HIV status and sex. We used generalized estimating equations to simultaneously model the effect of fat/lean mass on multiple bone outcomes, including total body bone mineral density and bone mineral content and spine bone mineral density. We evaluated effect modification by HIV and sex.

Results: The analysis cohort consisted of 143 HIV-neg and 236 HIV-pos, of whom 55% were black non-Hispanic and 53% were male. Ages ranged from 7 to < 25 years. Half of the children/youth were at Tanner stage 1 and 20% at Tanner 5. Fat mass was more strongly positively correlated with bone mass in HIV-neg than HIV-pos children/youth and these relationships were more evident for total body bone than spine outcomes. Within HIV strata, fat mass and bone were more correlated in female than male children/youth. The relationship between lean mass and bone varied by sex, but not by HIV status.

Conclusions: HIV disease diminishes the positive relationship of greater fat mass on bone mass in children/youth. Disruptions in body fat distribution, which are common in HIV disease, may have an impact on bone accretion during pubertal development.

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Conflict of interest statement

Conflict of interest statement: The authors have no conflict of interest.

Figures

Figure 1
Figure 1
Fat and bone z-scores by HIV status sex and Tanner stage (Lines: Females-solid Males-dashed HIV status: Negative-blue Positive-red)
Figure 2
Figure 2
Predicted bone outcomes by HIV status and sex
See this image and copyright information in PMC

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