Table 8: IL6 levels at AECOPD according to the category of COPD.

Category IL6 0 pg/ml (%) Total
< 7 > 7
C3 1 (1.8) 1 (1.8) 2 (3.6)
D3 4 (7.1) 39 (69.6) 43 (76.8)
D4 2 (3.6) 9 (16.1) 11 (19.6)
Total 7 (12.5) 49 (87.5) 56 (100)