Descriptive statistics by healthy control and idiopathic pulmonary fibrosis (IPF) subject groups
| Healthy controls | IPF subjects | p-value | |
| Subjects | 17 | 16 | |
| Age (years) | 58 (54–59) | 67.5 (61.8–73.0) | <0.001# |
| Male | 11 (65) | 9 (56) | 0.62¶ |
| Ever-smoker | 0 (0) | 9 (56) | <0.001¶ |
| Antifibrotic therapy | |||
| Nintedanib | 5 (31) | ||
| Pirfenidone | 8 (50) | ||
| None | 3 (19) | ||
| FVC % pred | 78.0 (70.0–82.5) n=15 | ||
| DLCO [Hb] % pred | 53.5 (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.