Prevalence of self-reported respiratory symptoms by smoking status
| Respiratory symptom | Non-smoker | Ex-smoker | Current smoker | All men | ||||
|---|---|---|---|---|---|---|---|---|
| N | (%) | N | (%) | N | (%) | N | (%) | |
| Chronic productive cough | 24 | (12.6) | 40 | (21.7) | 368 | (60.6) | 432 | (44.0) |
| MRC breathlessness grade 2 | 34 | (17.8) | 39 | (21.2) | 173 | (28.5) | 246 | (25.1) |
| MRC breathlessness grade 3 and above | 11 | (5.8) | 18 | (9.8) | 58 | (9.6) | 87 | (8.9) |
| Wheeze | 5 | (2.6) | 4 | (2.2) | 33 | (5.4) | 42 | (4.3) |
| Nocturnal dyspnoea | 6 | (3.1) | 6 | (3.3) | 19 | (3.1) | 31 | (3.2) |
| Chronic cough and breathlessness* | 9 | (4.7) | 17 | (9.2) | 178 | (29.3) | 204 | (20.8) |
| Total | 191 | (100) | 184 | (100) | 607 | (100) | 982† | (100) |
*Breathlessness defined as MRC breathless grade 2 or above and/or wheeze and/or nocturnal dyspnoea.
†Smoking status missing for one man.
MRC, Medical Research Council.