Tuberculosis risk in the staff of three clinical surgical hospitals at Havana city

[摘要] Introduction: Nosocomial tuberculosis transmission has been recognized worldwide as a problem for TB control.Objectives: To estimate the prevalence of Latent Tuberculosis Infection and to evaluate the risk of Tuberculosis Infection in Health Care Workers of three Surgical Clinical Hospitals at Havana City.Methods: A cross sectional study in a sample of 804 Health Care Workers out of 5737 staff of three hospitals at Havana City was carried out; a tuberculin skin test was applied along with an interview on personal data, labor location and exposition to M. tuberculosis. A 10 mm cut-off point was used. To prove the possible influence of predictor variables on the presence of infection, a bivariate analysis and a multivariate model were applied. The individual risk was classified as high, Intermediate, Low and Minimum. The Collective Risk was measured by departments and were classified as High, Intermediate, Low, Very Low and Minimum Risk.Results: The prevalence of Latent Tuberculosis Infection was 28.8 %, lower in Albarrán (26.6 %) and higher in Allende (31.5 %). Induration mean: 10.4 mm excluding non-reactors. A possible association of Latent Tuberculosis Infection with the categories: nurses and services workers, having contact with tuberculosis cases, and ≥ 6 years working in the hospital was found. 28.6 % of workers were evaluated as high risk; 33.6 % of the departments were evaluated as High Risk, 31 % Intermediate and none as Minimum risk.Conclusions: The risk of Micobacterium tuberculosis Infection for Health Care Workers of 3 hospitals at Havana city was evaluated among intermediate and high, with a third of their areas constituting a potential tuberculosis risk for the personnel working in them.

[学科分类] 传染病学

[关键词] Tuberculosis;transmisión;riesgo;trabajadores de la salud