ArticleEnvironmental research2024
Exposure to toxic chemical elements among people living with HIV/AIDS in Northern Tanzania.
Article in Environmental research, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Correlation between gold and mercury in human blood among individuals in northwestern Tanzania.Academia global and public health · 2026Article
- Exposure to toxic chemical elements (Pb, Cd, and Hg) and its association with sustained high blood pressure among secondary school attending adolescents in Northwestern Tanzania.Environmental research · 2025Article
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Authors and funding
6 authors.
Funding
Abstract
Environmental exposure to toxic chemicals including cadmium (Cd), lead (Pb), and mercury (Hg), are known risk factors for cardiovascular (CVD) and kidney disease. In people living with HIV (PLWH), CVD and kidney disease are the leading cause of death. Neither traditional risk factors nor markers of HIV infection fully explain such an increased risk. It is of paramount importance to establish the epidemiology of toxic chemicals exposure in PLWH, to inform screening and prevention interventions in this vulnerable population. This cross-sectional study compares toxic chemical levels (T-Cd, T-Pb, and T-Hg) among PLWH and HIV-uninfected adults in Northwestern Tanzania. A total of 495 PLWH and 505 HIV-uninfected subjects were analyzed. Spearman's rank correlations were used to examine the relationship between toxic chemical elements by HIV status. Linear regression models were used to determine the association between exposures and outcomes of interest among study participants. In both PLWH and HIV-uninfected adults, blood T-Cd, T-Pb, and T-Hg levels were frequently found at levels above the reference value of 5, 50, and 20 μg/L, respectively. Overall, factors associated with blood toxic chemical levels included vegetable servings per week, obesity, untreated water sources, use of alcohol, and HIV. Among PLWH, weekly vegetable intake provided a protective effect against T-Cd (Coeff = -0.03, 95%CI = -0.06, -0.01) and T-Pb (Coeff = -0.05, 95%CI = -0.09, -0.01) exposure among PLWH. Alcohol intake (Coeff = 0.10, 95%CI = 0.06, 0.13), obesity (Coeff = 0.08, 95%CI = 0.02, 0.13), longer duration to indoor smoke exposure (Coeff = 0.003, 95%CI = 0.001, 0.004), and HIV infection (Coeff = 0.11, 95%CI = 0.07, 0.15) were associated with increased individuals blood T-Hg levels. Individuals in northwestern Tanzania, including PLWH, have high blood levels for T-Cd, T-Pb, and T-Hg. Factors associated with higher blood levels include water sources, obesity, use of alcohol, exposure to indoor smoke, and HIV infection.
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