Table 1 Characteristics of TB cases identified under different technical instruction

TB cases identified

270

131

 Male sex

176

88

Age group, y

 ≤24

26

15

 25–34

37

20

 35–44

35

16

 45–54

60

26

 55–64

63

30

 65–74

33

20

 ≥75

16

4

Medical history investigation

 TB now, on treatment

12

12

 TB previous, treated

33

20

 TB previous, untreated

8

0

 TB previous suspect classification, untreated

5

2

 Current TB symptoms

40^§

19

Chest radiograph characteristics

 Consistent with inactive TB

22

3

 Consistent with active TB

248

128

Sputum test

 Positive AFB smear and MTB culture

41

40

 Positive AFB smear and negative MTB culture

10

10

 Negative AFB smear and positive MTB culture

181

44

Negative AFB smear and negative MTB culture

32

31

 Nontuberculous mycobacteria

6^*

6

Drug susceptibility test for MTB isolates

 Total isolates

222

84

 Pan-susceptible to first-line anti-TB drugs

184

71

 First-line primary-drug resistant

33

11

 First-line acquired-drug resistant

5

2

 Multidrug resistant

5^¶

2