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Table 1 Base-line characteristics of the 762 children included in the study

From: Relation between BCG vaccine scar and an interferon-gamma release assay in immigrant children with “positive” tuberculin skin test (≥10 mm)

Boys-girls

458 boys, 304 girls

Median age

14 years

10–18 years

625

5–9 years

99

0–4 years

38

Median timea spent in Sweden

8 (0–96) months

Unaccompanied minors

215 (46 girls, 169 boys)

Concomitant diseases

36

HBsAg positive

8

Asthma

3

Rickets

3

Kidney stones

4

Epilepsia

3

Iron deficiency anema

3

Thalassemia minor

2

Mb Down

2

Coeliaci

1

Psychomotor retardation

2

Duchenne’s muscular dystrophy

1

Diabetes mellitus

1

Cannabis smoker

1

Mb Crohn

1

Cerebral palsy

1

  1. aTime (range) when QFT was assayed