Table 2.

ROC analysis for different thresholds of disability score

	Sensitivity (%)	Specificity (%)	PPV (%)
Threshold
>0	100	0	25
>5	100	10	27
>10	93	25	30
>15	87	40	33
>20	78	54	36
>25	68	64	39
>30	63	72	43
>35	53	82	50
>40	47	89	59
>45	37	92	61
>50	28	96	68
>55*	26	97	72
>60	19	98	72
>65	10	99	70
>70	3	99	50
>75	0	99	0
>80	0	100	0

*Best cutoff value considering the positive predictive value

PPV positive predictive value