Epidemiologic Evidence of and Potential Mechanisms by Which Second-Hand Smoke Causes Predisposition to Latent and Active Tuberculosis.

Dogar and co-workers ( 19 ) performed a meta-analysis on 12 studies and found that SHS exposure was associated with LTBI although this did not reach statistical significance (RR, 1.19; 95% CI, 0.90–1.57); marked variability in the results were also found, which was attributed to differences in the diagnostic criteria used among the studies analyzed.

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