Screening for tuberculosis and prediction of disease in Portuguese healthcare workers

Table 1 Study population for comparison of IGRA with TST

Age	N	%
< 25 years	301	10.4
25-29 years	821	28.5
30-39 years	791	27.4
40-49 years	534	18.5
≥ 50 years	437	15.2
Gender
Female	2,068	71.7
Male	816	28.3
BCG vaccination
Only at birth	917	31.8
One additional	1,022	35.4
Two additional	663	23.0
≥ 3 additional	282	9.8
Profession
Administrator	388	13.5
Auxiliaries, cleaning staff	487	16.9
Technicians (radiology, lab, etc.)	170	5.9
Nurses	1,204	41.7
Physicians	635	22.0
Risk assessment
Low risk	206	7.1
Moderate risk	1,722	59.7
High risk	956	33.1
Years working in healthcare
Start of work	400	13.9
< 1 years	141	4.9
1-5 years	787	27.3
>5-10 years	465	16.1
10-20 years	573	19.9
≥ 20 years	518	18.0

ISSN: 1745-6673