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Table 1 Population characteristics

From: Screening for latent tuberculosis infection among undocumented immigrants in Swiss healthcare centres; a descriptive exploratory study

Population characteristic

Interferon-γ assay

Total

 

Positive

n = 24

n (%)

Negative

n = 101

n (%)

n = 125

n (%)

Age

   

   <20

0 (0)

3 (3.0)

3 (2.4)

   20–39

13 (54)

78 (77)

91 (72.8)

   40–59

11 (46)

18 (18))

29 (23.2)

   60 or more

0 (0)

2 (2)

2 (1.6)

Gender

   

   Male

13 (54)

53 (52)

66 (52.8)

Level of education

   

   Compulsory or less

11 (46)

46 (46)

55 (45.6)

Reasons for migrating

   

   Economical

16 (64)

63 (63)

79 (63.2)

   Political persecution

2 (8)

19 (19)

21 (16.8)

   Religious persecution

1 (4)

2 (2)

3 (2.4)

   Disease

4 (17)

2 (2)

6 (4.8)

   Family grouping

4 (17)

16 (16)

20 (16)

   Studies

2 (8)

8 (8)

10 (8.0)

   Other

1 (4)

6 (6)

7 (5.6)

Arrived in Switzerland

   

   Less than 2 years

12 (48)

54 (54)

66 (52.8)

   2–7 years

6 (25)

38 (38)

44 (35.2)

   More than 7 years

6 (24)

9 (9)

15 (12.0)

Tobacco

   

   Smoker

9 (37)

39 (39)

48 (38.4)

Close contact with TBC

   

   Reported

5 (21)

15 (15)

20 (16.0)

   Not reported

19 (79)

86 (85)

20 (84.0)

Proximity of at least one hour with someone during previous 3 months

   

   Disco or dancing

8 (33)

43 (43)

51 (40.8)

   Religious meetings

10 (42)

41 (41)

51 (40.8)

   Interior sports

1 (4)

22 (22)

23 (18.4)

   Restaurants or pubs

4 (17)

16 (16)

20 (16)

   Welfare hostel

1 (4)

5 (4)

6 (4.8)

   Other

1 (4)

8 (8)

9 (7.2)