Table 2 Sputum samples evaluation according to patient backgrounds
| Â | All patients | Previous antibiotics | Immunosuppressed | Suspected aspiration |
|---|---|---|---|---|
n = 670 | n = 97 | n = 40 | n = 246 | |
No sputum sample, n (%) | 79 (11.8) | 11 (11.3) | 7 (17.5) | 5 (2.0) |
Poor quality sample, n (%) | 113 (16.9) | 20 (20.6) | 9 (22.5) | 54 (22.0) |
Good quality sample, n (%) | 478 (71.3) | 66 (68.0) | 24 (60.0) | 187 (76.0) |
  No meaningful microorganism, n (%) | 57 (8.5) | 24 (24.7) | 2 (5.0) | 25 (10.2) |
  Polymicrobial flora, n (%) | 150 (22.4) | 16 (16.5) | 4 (10.0) | 83 (33.7) |
  Predominant morphotype, n (%) | 271 (40.4) | 26 (26.8) | 18 (45.0) | 79 (32.1) |
Positive predict, n (%) | 189 (28.2) | 13 (13.4) | 9 (22.5) | 51 (20.7) |