Characteristic | Never-smokers | Exsmokers | Current smokers |
Subjects n | 18 | 406 | 163 |
Age yrs | 64±7.5 | 63±7.1 | 60±7.3 |
Pack-yrs | 0 | 22±14 | 31±16 |
Asbestos exposure yrs | 27±9.4 | 26±9.7 | 24±9.9 |
Weight kg | 80±13 | 84±12 | 78±14 |
Height cm | 173±8.1 | 174±6.6 | 174±6.8 |
C‐reactive protein | 11±2.5 | 11±5.9 | 11±5.5 |
Mucous production (0, 1) | 6 (33) | 147 (36) | 100 (61) |
Dyspnoea (0–3) | 0.88±0.81 | 0.92±0.94 | 1.1±0.91 |
Prolonged cough (0, 1) | 6 (33) | 101 (25) | 89 (54) |
Data are presented as mean±sd or as n (%) for Binary variables (mucus production and prolonged cough), unless otherwise stated