Factors significantly associated with LTBI were working duration in healthcare over one year [8.8 (CI: 1.14; 69)]; worked as a nursing assistant [2, 32 (CI: 1.16; 4.64)], those who had no BCG vacccination in history [4.91 (CI: 3.52; 6.88)] and recent history of contact to TB patients diagnosed TB without any protection measures [1.59 (CI: 1.12; 2.02)].