The authors conducted a cross-sectional survey to estimate the prevalence of tuberculosis infection in employees at the Uberlândia University Hospital, Minas Gerais. The participants (167) were classified according to exposure to tuberculosis into three groups: A) clinical medicine ward, frequent; B) admission unit, limited; and C) administration area, none, and underwent a two-step tuberculin testing. Factors associated with positive results were: level of exposure (44.70%; OR, 1.45; IC, 1.13-2.15; p = 0.013), age over 40 years (52.60%; OR, 1.66; IC, 1.20-2.30; p = 0.004) and employed for more than 10 years (59.30%; OR, 1.63; IC, 1.13-2.22; p = 0.011). Among clinical personnel at the Uberlândia University Hospital the prevalence of significant tuberculin reaction was high.

Keywords: Tuberculosis. Tuberculin skin test. Health care personnel.