Patients with culture-negative sputum (n = 17) | Patients with culture-positive sputum (n = 25) | Total (n = 42) | P-value | |
Smear-positive bronchial washing | 2 (11.8%) | 3 (12%) | 5 (11.9%) | 0.68 |
Culture-positive bronchial washing | 17 (100%) | 19 (76%) | 36 (85.7%) | 0.03 |