Table 5: Cut-off
points for VRS categories on NRS using receiver operating characteristic (ROC)
curves.
VRS
categories |
NRS
cut- off points |
ROC curve |
||||
Control |
Test |
Sensitivity |
AUC |
p-value |
95% CI |
|
Mild |
Moderate |
> 3.25 |
91.67 |
0.871 |
< 0.0001 |
0.8079
to 0.9344 |
Moderate |
Severe |
> 6.5 |
100.0 |
0.9833 |
< 0.0001 |
0.97 to
0.9967 |
Mild |
Severe |
> 6.5 |
100.0 |
0.9935 |
< 0.0001 |
0.98 to
1.007 |