Descriptive statistics by healthy control and idiopathic pulmonary fibrosis (IPF) subject groups

Healthy controlsIPF subjectsp-value
Age (years)58 (54–59)67.5 (61.8–73.0)<0.001#
Male11 (65)9 (56)0.62
Ever-smoker0 (0)9 (56)<0.001
Antifibrotic therapy
 Nintedanib5 (31)
 Pirfenidone8 (50)
 None3 (19)
FVC % pred78.0 (70.0–82.5) n=15
DLCO [Hb] % pred53.5 (45.0–66.5) n=10

Data are presented as n, median (interquartile range) or n (%), unless otherwise stated. FVC: forced vital capacity; DLCO [Hb]: diffusing capacity of the lung for carbon monoxide corrected for haemoglobin. #: Wilcoxon rank sum test; : Pearson Chi-squared test.