From: Prevalence and risk factors for latent tuberculosis in polish healthcare workers: the comparison of tuberculin skin test and interferon-gamma release assay (IGRA) performance
Age group (years)
QFT ≥ 0.35 No (%)
23–44
20 (14)
45–59
36 (49)
60–70
4 (80)
Total
60 (27)
p (Fisher exact test) in relation to the whole tested group
0.0001