Characteristic

PZA-sensitive

cases (%)

PZA-resistant

cases (%)

x²

P value

Gender

Male

100 (67.6)

24 (52.2)

3.606

0.067

Female

48 (32.4)

22 (47.8)

Medical history

Initial treatment^a

113 (76.4)

36 (78.3)

0.072

0.978

Retreatment^b

35 (23.6)

10 (21.7)

Age (years)

≤25

44 (29.7)

17 (37.0)

3.892

0.273

25 - 44

53 (35.8)

20 (43.5)

45 - 64

35 (23.7)

6 (13.0)

≥65

16 (10.8)

3 (6.5)

Sputum smear

1+

52 (35.1)

17 (37.0)

0.665

0.721

2+

45 (30.4)

16 (34.8)

≥3+

51 (34.5)

13 (28.2)

Lesions of infection

1 - 2

28 (18.9)

9 (19.6)

3.907

0.142

3 - 4

40 (27.0)

19 (41.3)

5 - 6

80 (54.1)

18 (39.1)

Cavitary lesions

126 (85.1)

37 (80.4)

0.577

0.447