Table. 2—

Patient demographics and disease characteristics at baseline#

Age yrs66.3±8.6
FEV1 % pred40.9±18.1
FEV1/FVC %50.0±14.0
Duration of COPD yrs7.4±7.4
Smoking history
 Ex-smoker77 (61.6)
 Smoker39 (31.2)
 Never smoked9 (7.2)
Patients with ≥1 comorbidity97 (77.6)
Number of exacerbations in the past 12 months4.6 (1–50)
Time since last exacerbation days93.6 (0–720)
Duration of last exacerbation days12.7 (1–119)
Time between exacerbations days115.6 (1–546)
Healthcare resource use per patient in the past 12 months
 Healthcare professional visits4.1 (0–19)
 Emergency room visits1.1 (0–10)
 Hospitalisations0.8 (0–8)
 Stays in intensive care unit0.04 (0–1)
  • Data are presented as n, mean±sd, n (%) or mean (range). FEV1: forced expiratory volume in one second; FVC: forced vital capacity; COPD: chronic obstructive pulmonary disease. #: n = 125; : data determined from patient responses. According to physician records, all patients met the inclusion criteria.