Table 1

Patient demographics

All patients
Mean age, years (SD)60 (13)
Women, %60
Ethnicity, %
 South Asian*13
Smoking status, %
Mean time since diagnosis, years (SD)4.0 (3.7)
FVC, % predicted (range)82 (34–143)
TLCO, % predicted (range)49 (12–92)
Immunosuppressant medications, %
 Prednisolone + other28
Comorbidity, %
 Emphysema (by HRCT)11
  • Immunosuppressant medications were those prescribed at the time of the study.

  • * South Asian patients originating from India, Pakistan or Bangladesh.

  • Emphysema (by HRCT), emphysema by high-resolution CT; ex- smoker, >10 pack-year smoking history; FVC, forced vital capacity; IHD, ischaemic heart disease; TLCO, transfer factor of the lung for carbon monoxide as % predicted.