Table 1.

Demographic data and vaccination status of 413 HCWs evaluated at least once during the period of the study.

	Uninfected (n = 159)	Previous LTBI (n = 211)	Recent LTBI (n = 43)
Female/male	137/22	171/40	37/6
Age – range	18–62	18–68	18–62
mean (SD)	39.78 (± 10.3)	41.82 (± 10.2)	39.91 (± 10.8)
Previous BCG	100 (62.9%)	163 (77.3%)	30 (59.8%)
old application	92 (92%)	149 (91.4%)	29 (96.6%)
recent application*	8 (8%)	14 (8.6%)	1 (3.4%)

SD = standard deviation; BCG = Bacilli Calmette-Guérin; LTBI = latent tuberculosis infection;

*Vaccination in the last five years