From: Proteolytic biomarkers are related to prognosis in COPD- report from a population-based cohort
 | Non-COPD n = 948 | COPD n = 594 | P |
---|---|---|---|
Female, n (%) | 447 (47) | 248 (42) | 0.038 |
Age (years), median (IQR) | 67 (55–71) | 69 (57–71) | 0.015 |
BMI (kg/m2), median (IQR) | 27 (24–30) | 26 (24–29) | < 0.001 |
Non-smoker, n (%) | 443 (47) | 149 (25) | < 0.001 |
Ex-smoker, n (%) | 384 (41) | 247 (42) | 0.676 |
Current smoker, n (%) | 120 (13) | 197 (33) | < 0.001 |
Pack years, median (IQR) | 0.8 (0–12) | 14 (0–27) | < 0.001 |
FEV1% predicted, median (IQR) | 1.03 (0.93–1.13) | 0.85 (0.73–0.96) | < 0.001 |
Productive cough, n (%) | 212 (22) | 238 (40) | < 0.001 |
Heart disease, n (%) | 149 (16) | 111 (19) | 1.000 |