Objective

Epidemiological study of prevalence, carried out at Center for Drug Addiction of the center of addictions of Nou Barris (Barcelona, Spain) during 2013-2016 in order to know the prevalence of tuberculin test reactivity (TTR) and its predictive factors in drug-dependent population.

Material and methods

Epidemiological and clinical variables, associated with the consumption of drugs and the practice of the tuberculin test, were collected. The reading rate and the prevalence of TTR for annual periods, as well as the predictive factors through a bivariate and multivariate logistic regression analysis.

Results

389 patients were studied (109 in 2013, 84 in 2014, 111 in 2015 and 85 in 2016) and they went to the reading of the TT 337 (86.6%). The prevalence of TTR was 33.2% in the readings. At the bivariate level, TTR was associated with sex, origin and prior history. In the multivariate analysis, the predictive value of age was confirmed (more reactivity in ≥40 years; p <0.001, odds ratio [OR]: 4.85, confidence interval [IC]: 2.68-8.78), being male (p = 0.003, OR: 2.81, IC: 1.43-5.53), and being an immigrant (p <0.001; OR: 7.32, IC: 3.56-15.03).

Discussion

It is concluded that the prevalence of TTR is high, especially in men, in those of more age, and in immigrants and that the drug addiction devices continue to be basic in the detection and monitoring of the latent tuberculosis infection.

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