From: Prognosis and longitudinal changes of physical activity in idiopathic pulmonary fibrosis
 | C statistic | Crude Cox regression of the raw predictors | Adjusted Cox regression of the standardized predictors | ||||||
---|---|---|---|---|---|---|---|---|---|
AUROC | 95% CI | p-value | HR | 95% CI | p-value | HR | 95% CI | p-value | |
Lung Function | |||||||||
 FVC %pred. | 0.79 | 0.65–0.92 | 0.001 | 0.96 | 0.94–0.99 | 0.001 | 0.36 | 0.20–0.66 | 0.001 |
 DLCO %pred. | 0.78 | 0.64–0.92 | 0.001 | 0.94 | 0.91–0.98 | 0.002 | 0.33 | 0.17–0.67 | 0.002 |
Exercise Capacity | |||||||||
 6MWD | 0.77 | 0.63–0.91 | 0.002 | 0.96a | 0.93-0.98 | 0.003 | 0.56 | 0.37–0.87 | 0.009 |
Physical Activity | |||||||||
 Steps per day | 0.79 | 0.65–0.92 | 0.001 | 0.97b | 0.96-0.99 | 0.002 | 0.46 | 0.26–0.82 | 0.008 |
Disease Severity | |||||||||
 GAP Score | 0.74 | 0.59–0.89 | 0.006 | 1.63 | 1.19–2.24 | 0.003 | n/a | n/a | n/a |