From: Serum metalloproteinase-9 is related to COPD severity and symptoms - cross-sectional data from a population based cohort-study
Non-COPD
COPD
Beta
P-value
Sex (female†)
0.038
0.256
0.060
0.140
Age‡
0.025
0.460
0.032
0.444
Productive cough (no prc†)
0.012
0.714
0.078
0.068
Pack years‡
0.084
0.013
0.077
0.069
FEV1% pred‡
−0.052
0.120
−0.092
0.033