Table 4

Percentage of individuals in each category of lung symptom severity assessed by the Selim Index of Chronic Lung Disease* according to asthma diagnosis

Selim Chronic Lung Disease (CLD) Index
*The Selim CLD Index is a 6 item questionnaire with three subscales of dyspnoea, wheezing, and cough/sputum. The index is scored out of 100, categorised into mild (⩽43), moderate (44–62), and severe (>62) levels of severity.15
Diagnosed asthma (n=236)71.420.97.7
Undiagnosed asthma (n=56)
No asthma (n=2231)
Total (n=2523)