Table 2.
Analysis of ROC by eight significantly different indices between early death group and early survival group.
| Analysis of ROC | |||||
|---|---|---|---|---|---|
| AUC | Value of cut-off | Sensitivity (%) (C.I.) | Specificity (%) (C.I.) | p value | |
| Age at onset | 0.684 | 54.5 | 56.3 | 74.4 | 0.033* |
| CRP | 0.692 | 8.51 | 68.8 | 74.4 | 0.026* |
| Ferritin | 0.776 | 568.34 | 53.8 | 96.9 | 0.004* |
| ELVAR | 0.795 | 0.835 | 71.8 | 81.2 | 0.001* |
| P/F ratio | 0.822 | 269.5 | 87.2 | 75.0 | 0.000* |
| Albumin | 0.829 | 26.65 | 87.2 | 75.0 | 0.000* |
| FVC# | 1.000 | 64.5 | 100.0 | 0.0 | 0.004* |
| DLCO# | 1.000 | 61.0 | 100.0 | 0.0 | 0.004* |
*
P < 0.05.
#
Only two patients in early death group accepted lung function test and other 14 patients in early death group didn't accept lung function test for rapidly death or intolerable.
CRP, C reactive protein; DLCO, carbon monoxide diffusing capacity; ELVAR, Efficient Lung Ventilation Area Ratio; FVC, forced vital capacity; P/F ratio, PaO2/FiO2 ratio.