Association of Body Mass Index with the Tuberculosis Infection: a Population-based Study among 17796 Adults in Rural China.
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| Abstract |
Body mass index (BMI) has been shown to be associated with host susceptibility to several infections. However, the link between BMI and the risk of tuberculosis (TB) infection has been sparsely studied in China and in worldwide. Based on the baseline survey of a population-based, prospective study in rural China, the association between BMI and TB infection among adults was estimated by means of cross-sectional analysis. TB infection status was tested using QuantiFERON-TB Gold In-Tube (QFT), a commercial of interferon-γ release assay (IGRA). Totally, 17796 eligible participants aged ≥18 years from 4 study sites, were included in the analysis. 21.76% (3873/17796) were observed to be QFT positive. Age and gender standardized prevalence ranged from 16.49% to 23.81% across the study sites. 42.19% study participants were obese/overweight with BMI ≥ 24.0 kg/m2. BMI ≥ 28.0 kg/m2 was observed to be independently associated with QFT positivity (adjusted odds ratio: 1.17, 95% confidence interval: 1.04-1.33). The strength of the association was found to be geographically diversity, which might be explained, at least partly, by the varied local TB epidemic status. Our results suggest that individuals with obesity might be one important target population for TB infection control in rural China.
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| Authors | Haoran Zhang, Xiangwei Li, Henan Xin, Hengjing Li, Mufei Li, Wei Lu, Liqiong Bai, Xinhua Wang, Jianmin Liu, Qi Jin, Lei Gao |
| Journal | Scientific reports (Sci Rep) Vol. 7 Pg. 41933 (02 08 2017) ISSN: 2045-2322 [Electronic] England |
| PMID | 28176883 (Publication Type: Journal Article, Multicenter Study, Research Support, Non-U.S. Gov't) |
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