Latent Tuberculosis Infection in Healthcare Workers: A Cross-Sectional Study from a Tertiary Hospital in Central Anatolia.

Objective: This study assessed the incidence and risk factors of latent tuberculosis infection (LTBI) among healthcare workers (HCWs) in a tertiary healthcare institution in Central Anatolia. Materials and Methods: A prospective study was conducted. From January 1 to June 30, 2024, HCWs who visited the personnel follow-up outpatient clinic were diagnosed with LTBI based on tuberculin skin test results. Demographic data, occupation, workplace and duration of employment, and risk factors for tuberculosis exposure inside and outside the workplace were compared between HCWs with and without LTBI. Results: A total of 101 HCWs participated in the study. LTBI was detected in 19 HCWs (19%). The median age of healthcare workers was 36 years, with the majority being nurses (40%) and university graduates (60%). There were no differences between LTBI and non-LTBI groups in terms of demographic data, occupational, and non-occupational tuberculosis contact risks. Examination of chest X-ray findings revealed that HCWs with LTBI had more abnormal findings, with a statistically significant difference in the rate of calcification (p=0.003). Among HCWs with LTBI, the use rate of filtering facepiece (FFP-3) masks when in contact with suspected or confirmed tuberculosis patients was lower (31% and 45%). Conclusion: This study identified latent tuberculosis in one out of every five healthcare workers. Routine examination and periodic chest X-rays for HCWs are crucial for predicting latent tuberculosis. Healthcare workers should be educated on the correct use of personal protective equipment.