From: Plasma levels of alpha1-antichymotrypsin and secretory leukocyte proteinase inhibitor in healthy and chronic obstructive pulmonary disease (COPD) subjects with and without severe α1-antitrypsin deficiency
Subjects
N
ACT (mg/ml)
SLPI (ng/ml)
Mean* ± SD
Healthy
153
0.40 ± 0.10
40.7 ± 9.1
COPD
19
0.52 ± 0.19
20
49.5 ± 7.2