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Table 1 Characteristics of study participants (n = 387)

From: Screening for latent tuberculosis in Norwegian health care workers: high frequency of discordant tuberculin skin test positive and interferon-gamma release assay negative results

Characteristics

No

(%)

Age 1)

36

23-64

Sex

  

Male

61

15.8

Female

326

84.2

Origin

  

Norway

357

92.2

TB low-endemic country

15

3.9

TB high-endemic country

15

3.9

Work place

  

Infectious Medicine

160

41.3

Pulmonary Medicine

123

31.8

Microbiology

80

20.7

Pathology

24

6.2

Profession

  

Nurse

222

57.4

Physician

60

15.5

Laboratory staff

99

25.6

Administration

6

1.6

Work TB endemic country 2)

59

15.2

Stay TB endemic country 2)

288

74.4

Exposure to TB at work 3)

  

Patients

239

61.8

Laboratory

85

22.0

Exposure to TB outside work

50

12.9

BCG vaccinated

379

97.9

BCG scar

358

92.5

Previous TB

3

0.8

  1. 1)Median (range). Definitions: TB = Tuberculosis. 2)The three longest visits were registered. 3)The three longest contacts were registered.