Growth and Body Composition in HIV-Infected African Adolescents
Author Information
Author(s): Filteau Suzanne, Simms Victoria, Chisenga Molly, Kahari Cynthia, Dzavakwa Nyasha, Namukonda Cassandra, Ward Kate A., Kasonka Lackson, Gregson Celia L., Wells Jonathan
Primary Institution: London School of Hygiene and Tropical Medicine
Hypothesis
Is linear growth associated with total and regional body fat and lean mass in adolescents with perinatal HIV infection and a high prevalence of stunting?
Conclusion
Increased linear growth primarily benefits lean mass but also promotes fat mass, indicating better health outcomes for HIV-infected adolescents.
Supporting Evidence
- Stunting was present in 37% of males and 23% of females.
- HAZ was positively associated with total, trunk, arm, and leg fat mass.
- Non-suppressed HIV viral load was linked to lower lean mass.
- Associations with lean mass were stronger than those with fat mass.
- High viral load was associated with lower lean mass but not fat mass.
Takeaway
This study found that taller HIV-infected teens tend to have more muscle and fat, which is good for their health, but being short doesn't mean they'll get fat later.
Methodology
The study analyzed body composition using dual-energy X-ray absorptiometry (DXA) and included participants aged 11-19 years from Zambia and Zimbabwe.
Potential Biases
Potential bias due to missing parental education data and the cross-sectional design.
Limitations
The study was cross-sectional, limiting causal inferences, and had a low prevalence of overweight participants, which may affect the generalizability of the findings.
Participant Demographics
Participants were perinatally HIV-infected adolescents aged 11-19 years, with a mix of males and females from Zambia and Zimbabwe.
Statistical Information
P-Value
<0.001
Confidence Interval
95% CI for total fat Z: 0.21, 0.38; total lean Z: 0.58, 0.69
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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