Table 1 Subject characteristics
|  | Patients with IPF (n = 18) | Controls (n = 21) |
|---|---|---|
Age (years) (mean ± SD [range]) | 68.2 ± 7.1 (50–79) | 67.8 ± 9.1 (57–88) |
Male/female | 14/4 | 7/14 |
%FVC (median [IQR]) | 91.7 (80.1–101.7) | NR |
%DLCO (median [IQR]) | 56.7 (50.6–66.0) | NR |
Current or ex-smoker (%) | 83.3 | 47.6 |
GAP stage (number) | I (10), II (6), III (2) | NR |
6-min walk test distance (m) (median [IQR]) | 420 (380–500) (n = 11) | NR |
Desaturation during 6-min walk test (number) | 4 (n = 11) | NR |