Table 1.

Demographic details and comorbidities

Demographic details
Age (mean (range))60 (39–83) years
Sex (male: female)37:5
Comorbidities
Hypertension20 (48%)
Diabetes18 (43%)
Ischaemic heart disease12 (28%)
OSA3 (7%)
Obesity2 (5%)
Previous lung disease
Asthma3 (7%)
Interstitial lung disease2 (5%)