Table 7: CRP levels at AECOPD according to the category of COPD.
| Category | CRP 0 mg/l (%) | Total | |||
| 5-10 | 10-40 | 40-200 | > 200 | ||
| C3 | 1 (1.8) | 1 (1.8) | 2 (3.6) | ||
| D3 | 5 (8.9) | 5 (8.9) | 16 (28.6) | 17 (30.4) | 43 (76.8) |
| D4 | 1 (1.8) | 6 (10.7) | 4 (7.1) | 11 (19.6) | |
| Total | 6 (10.7 ) | 6 (10.7) | 22 (39.3) | 22 (39.3) | 56 (100) |