Table 3 Respiratory symptoms according to the severity of airflow limitation in participants with and without a previous diagnosis of OLD
From: Underdiagnosis of obstructive lung disease: findings from the French CONSTANCES cohort
GOLD severity | Total (N = 763) | |||
|---|---|---|---|---|
Mild N = 319 | Moderate N = 4035 | Severe N = 41 | ||
No previous OLD diagnosis | ||||
Past-year wheezing, % | 19.8 | 29.4 | 76.2 | 26.3 |
Chronic cough, % | 10.1 | 21.1 | 28.0 | 16.1 |
Chronic sputum, % | 6.4 | 16.4 | 14.6 | 11.5 |
Dyspnoea grade ≥ 2, % | 9.1 | 20.1 | 44.4 | 15.6 |
≥ 1 symptom, % | 28.8 | 47.6 | 84.1 | 39.7 |
Previous OLD diagnosis | ||||
Past-year wheezing, % | 58.2 | 66.3 | 80.4 | 66.4 |
Chronic cough, % | 21.3 | 15.3 | 30.8 | 18.9 |
Chronic sputum, % | 13.1 | 12.2 | 25.2 | 14.4 |
Dyspnoea grade ≥ 2, % | 25.2 | 21.6 | 57.6 | 27.8 |
≥ 1 symptom, % | 71.2 | 73.7 | 80.9 | 74.2 |
Total | ||||
Past-year wheezing, % | 27.6 | 44.6 | 79.1 | 40.3 |
Chronic cough, % | 12.4 | 18.7 | 29.9 | 17.0 |
Chronic sputum, % | 7.8 | 14.7 | 22.1 | 12.5 |
Dyspnoea grade ≥ 2, % | 12.4 | 20.7 | 53.7 | 19.9 |
≥ 1 symptom, % | 37.6 | 58.4 | 81.8 | 51.9 |