Table 1—

Demographic and clinical features of the patient group

Age yrs50.29 (42.5–58.1)
Pack-yrs smoked14.00 (1.9–26.1)
High-risk occupation25.5
Low-risk occupation23.1
FEV1/FVC39.60 (26.6–52.6)
FEV1 % pred34.79 (14.54–55.04)
KCO % pred66.10 (49.05–83.15)
UZVI29.75 (16.48–43.02)
LZVI48.30 (32.18–64.42)
Incidence of known vascular disease3.62
Incidence of known malignancy0
  • Data are presented as % or median (interquartile range). FEV1: forced expiratory volume in 1 s; FVC: forced vital capacity; % pred: % predicted; KCO: transfer coefficient; UZVI: upper zone voxel index; LZVI: lower zone voxel index.