From: Value of serum and induced sputum surfactant protein-D in chronic obstructive pulmonary disease
Group 1 (control subjects) | Group 2 (stage 1 and 2 COPD patients) | Group 3 (stage 3 and 4 COPD patients) | p | |
---|---|---|---|---|
(n = 20) | (n = 20) | (n = 20) | ||
Serum SP-D (ng/ml) | 86.2 ± 49 | 108.9 ± 65 | 129 ± 71 | p = 0.10 |
Sputum SP-D (ng/ml) | 33.1 ± 34 | 28 ± 15.2 | 30.42 ± 12.8 | p = 0.83 |
Viability % | 73.5 ± 12.1 | 79.8 ± 11.2 | 80.1 ± 19 | p = 0.86 |