Patients with smear-negative sputum

(n = 42)

Patients with smear-positive sputum

(n = 14)

Total (n = 56)

P-value

Sex

Female

17 (40.5%)

4 (28.6%)

21 (37.5%)

0.32

Male

25 (59.5%)

10 (71.4)

35 (62.5)

Age, years

60.05 ± 18.26

65.86 ± 16.87

0.30

Culture-positive sputum

25 (59.5%)

14 (100%)

39 (69.6%)

0.003

Smear-positive bronchial washing

5 (11.9%)

7 (50.0%)

12 (21.4%)

0.006

Culture-positive bronchial washing

36 (85.7%)

12 (85.7%)

48 (85.7%)

0.65