Predictive factors of Mycobacterium tuberculosis infection and pulmonary tuberculosis in prisoners

Vicente Martín Sánchez, Fernando Alvarez-guisasola, Joan A. Caylá, Jose L. Alvarez

Research output: Contribution to journalArticle

Abstract

Background. Tuberculosis currently represents a serious problem in prison populations.Methods. With the aim of studying the predictive factors for, and the prevalence of, Mycobacterium tuberculosis infection and pulmonary tuberculosis in a Spanish prison, all those admitted during 1991 and 1992 were included (N = 1314). The tuberculin skin test, HIV serology, chest X-ray and bacteriological examination of sputum were carried out. Statistical analysis was done by univariant tests, stratified analysis and logistic regression.Results. The prevalence of M. tuberculosis infection was 55.5% (95% confidence interval [CI] 52.5-58.5). An association was found with sex, imprisonment more than once, HIV Infection and age. The co-infection rate (tuberculosis plus HIV) was 9.2%. Logistic regression showed a greater risk with age (4.4% per year), time spent in prison and for males. The prevalence of pulmonary tuberculosis was 1.26% and an association was found with M. tuberculosis infection, HIV infection (odds ratio [OR] = 13.7), intravenous drug users (OR = 17.2) and imprisonment more than once (OR = 7.3). Logistic regression showed an association with HIV co-infection (OR = 20.2).Conclusions. The prevalence of M. tuberculosis infection and pulmonary tuberculosis is high when compared with similar studies. The influence of age, time spent in prison and co-infection with HIV is relevant to recommendations for specific tuberculosis prevention programmes in correctional facilities.

Original languageEnglish (US)
Pages (from-to)630-636
Number of pages7
JournalInternational journal of epidemiology
Volume24
Issue number3
DOIs
StatePublished - Jun 1 1995

ASJC Scopus subject areas

  • Epidemiology

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