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Table 1 Characteristics of source population and study group: number and prevalence of positive TST

From: School based screening for tuberculosis infection in Norway: comparison of positive tuberculin skin test with interferon-gamma release assay

Variable

Population in nation born in 1991

Population in project area born in 1991

No. TST positives in project area

Prevalence of TST positives in project area

 

No.

No. (%)

No.

% (95% CI)

Total

63662

33456 (53)

531

1.6 (1.5 – 1.7)

Gender

    

Male

32617

17127 (53)

286

1.7 (1.5 – 1.9)

Female

31045

16329 (53)

245

1.5 (1.3 – 1.7)

Origin of child

    

Western-born

57775

29712 (51)

288

0.9 (0.9 – 1.1)

Second generation immigrant

2867

2052 (72)

111

5.4 (4.5 – 6.5)

First generation immigrant

3020

1692 (56)

132

7.8 (6.6 – 9.2)

  1. Characteristics of children born in 1991 in nation and project area and 531 children referred because of positive tuberculin skin test result in the school based screening programme in Norway in the school year of 2005–6.