From: Prognosis and longitudinal changes of physical activity in idiopathic pulmonary fibrosis
Characteristic | Absolute value at baseline | Absolute value at follow-up | Absolute decline (Baseline to follow-up) | Relative decline (Baseline to follow-up) | Average annual decline | p-value |
---|---|---|---|---|---|---|
FVC, liter | 3.05 (0.81) | 2.64 (0.78) | −0.41 (0.33) | 13.3% | −0.13 (0.11) | <0.001 |
FVC, %pred. | 84.8 (22.9) | 76.1 (23.9) | −8.7 (9.6) | 10.5% | −2.8 (3.0) | <0.001 |
DLCO, %pred. | 50.7 (13.6) | 43.5 (18.4) | −7.3 (13.3) | 14.4% | −2.2 (4.2) | 0.024 |
6MWD, meters | 418 (117) | 389 (132) | −29 (64) | 7.8% | −8.8 (20) | 0.055 |
Steps per day | 6499 (3192) | 3482 (2350) | −3017 (2372) | 48.3% | −973 (743) | <0.001 |