Table 7 Associations between patient characteristics and incidence of TB

Follow up TST outcome *

Negative < 10 mm

Reference

Reference

Positive ≥ 10 mm

61.28

7.95 - 472.38

58.08

7.23 - 435.21

Baseline TST outcome

Negative < 10 mm

Reference

Reference

Positive ≥ 10 mm**

1.30

0.37 - 4.63

4.70

0.56 - 39.41

Age group (years)

12-14

Reference

Reference

15-16

1.58

0.39 - 6.33

1.58

0.39 - 6.33

17-18

3.49

1.02 - 11.94

2.49

0.67 - 9.28

Sex

Male

Reference

Reference

Female

0.27

0.08 – 0.95

0.32

0.09 - 1.17

Education level

> 7 years

Reference

Reference

None

≤ 7 years

0.65

0.18 - 2.32

0.9

0.20 - 4.06

TB contact during follow-up

No

Reference

Yes

2.73

0.61 - 12.16

Cough during follow-up

<14 days

Reference

None

0.71

0.14 - 3.54

≥14 days

0.78

0.16 - 3.75