TST 5 mm

TST 10 mm

TST 11 mm

Health workers

n = 42

n = 42

n = 42

QFT−/TST−

6 (14.28)

8 (19.04)

15 (35.71)

QFT+/TST+

20 (47.61)

20 (47.61)

13 (30.95)

QFT−/TST+

15 (35.71)

13 (30.95)

6 (14.28)

QFT+/TST−

1 (2.38)

1(2.38)

8 (19.04)

All discordant (%)

16 (38.10)

14 (33.33)

14 (33.33)

Concordance, %

61.90

66.67

66.67

Kappa

0.29

0.33

0.33

Fisher, p-value

0.0192

0.0042

0.0150

Slaughterhouse workers

n = 31

n = 31

n = 31

QFT−/TST−

0 (0.00)

1 (3.23)

1 (3.23)

QFT+/TST+

30 (96.77)

30 (96.77)

30 (96.77)

QFT−/TST+

1 (3.23)

0 (0.0)

0 (0.00)

QFT+/TST−

0 (0.00)

0 (0.00)

0 (0.00)

All discordant (%)

1 (3.23)

0 (0.00)

0 (0.00)

Concordance, %

96.77

100.00

100.00

kappa,

0.98

1.00

1.00

Fisher, p-value

0.03

<0.001

<0.001

Household contact of TB index cases

n = 28

n = 28

n = 28

QFT−/TST−

5 (17.85)

7 (25.00)

8 (28.57)

QFT+/TST+

14 (50.0)

14 (50.0)

14 (50.0)

QFT−/TST+

6 (21.42)

4 (14.28)

3 (10.71)

QFT+/TST−

3 (10.71)

3 (10.71)

3 (10.71)

All discordant (%)

9 (32.14)

7 (25.00)

6 (21.43)

Concordance, %

67.86

75.00

78.57

kappa

0.29

0.47

0.55

Fisher, p-value

0.056

0.0066

0.0018