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Abstract Title:

Association between vitamin D and latent tuberculosis infection in the United States: NHANES, 2011-2012.

Abstract Source:

Infect Drug Resist. 2019 ;12:2251-2257. Epub 2019 Jul 22. PMID: 31413602

Abstract Author(s):

Cheng-Yi Wang, Yin-Lan Hu, Ya-Hui Wang, Cheng-Hsin Chen, Chih-Cheng Lai, Kun-Lun Huang

Article Affiliation:

Cheng-Yi Wang


Background: Latent tuberculosis infection (LTBI) is a precursor of active tuberculosis diseases and an important issue in the United States and worldwide. The association between vitamin D deficiency and LTBI is poorly understood.

Methods: From 2011 to 2012, the National Health and Nutrition Examination Survey (NHANES) assessed LTBI (according to tuberculin skin testing and QuantiFERON-TB Gold In-Tube) and measured serum levels of vitamin D. We evaluated the association between LTBI and vitamin D using multivariate logistic regression models adjusted for known confounders.

Results: The LTBI group had a lower 25-hydroxyvitamin D [25(OH)D] level than the non-LTBI group (=0.0012). The adjusted risk of LTBI was significantly higher among participants with serum 25(OH)D levels<12 ng/ml (adjusted OR [aOR], 2.27; 95% CI, 1.40-3.66) and 12-19 ng/ml (aOR, 1.75; 95% CI, 1.25-2.46) compared to those with a level ≥30 ng/ml. The higher risk of LTBI among the participants with serum 25(OH)D levels<12 ng/ml and 12-19 ng/ml remained unchanged in both male and summer season subgroups.

Conclusions: A low serum 25(OH)D level was significantly associated with the risk of LTBI in this US cohort.

Study Type : Human Study

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Sayer Ji
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