Res. comp. | Group | Total (n = 250) | χ2 | p value | ||
---|---|---|---|---|---|---|
Group I (n = 15) | Group II (n = 202) | Group III (n = 33) | ||||
Lung abscess | 0 | 2 (0.9%) | 2 (6.1%) | 4 (1.6%) | 8.43 | 0.02a |
Empyema | 0 | 5 (2.4%) | 6 (18.2%) | 11 (4.4%) | 20.8 | < 0.001a |
Pleural effusion | 3 (20%) | 30 (14.9%) | 12(36.3%) | 45 (18%) | 8.91 | 0.01a |