Elevated Arsenic Exposure Is Associated with an Increased Risk of Chronic Hepatitis B Virus Infection: NHANES (2003–2014) in U.S. Adults
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Studies concerning the association between arsenic exposure and hepatitis B virus (HB V) infection have been lacking. The present study aimed to examine the association between total urinary arsenic (TUA) and infection of HBV. A total of 5186 participants from National Health and Nutrition Examination Survey (NHANES) 2003–2014 were included in the analysis. We used logistic regression to evaluate the association. We defined two measures of TUA. TUAI was the sum of arsenous acid, arsenicacid, monomethylarsonic acid and dimethylarsenic acid. TUA2 was defined as TUA minus arsenobetaine and arsenocholine. The results showed that the weighted overall prevalence of HBV infection was 6.08%. For NHANES 2003–2014, the medians (interquartile range) of TUAI and TUA2 were 5.60 μg/L (3.97–8.09 μg/L) and 4.91 μg/L (2.36–9.11 μg/L), respectively. Comparing the highest quartile to the lowest quartile after multivariable adjustment showed that the odds ratios (ORs) and 95% confidence intervals (CIs) for TUAI and TUA2 were 2.44 (1.40–4.27) and 2.84 (1.60–5.05), respectively. In conclusion, elevated urinary arsenic was associated with the risk of HBV infection. Further studies, especially prospective studies, are needed to confirm the causal relationship between arsenic exposure and HBV infection.
Key wordsarsenic exposure hepatitis B infection National Health and Nutrition Examination Survey
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