Prevalence and Determinant of Tuberculin Skin Test among Health Care Workers of Imam Khomeini Hospital of Uremia, Iran.

Results: From 350 participants, 71 (20.28%) had indurations between 10-15mm and 96 (27.42%) had indurations more than 15mm. Most of HCWs with indurations more than 15mm were in age of 20-30 years. From 75 HCWs with employment duration of more than 10 years, 45(47%) had indurations of more than 15mm. Conclusion: PPD reaction in HCWs was higher comparison with control group, meaning this group are at high risk for Acquired TB.