Table 4.

Receiver Operating Characteristic Curve Analysis for Different Thresholds of Articular Involvement for Subluxation.

Threshold, %	Sensitivity	Specificity
0	100	0
5	100	4.7
10	99	26
15	92	44
20	81	66
25	73	78
30	66	85
35*	64	90
40	48	93
45	40	96
50	30	96
55	19	97
60	12	98
65	7.9	99
70	2.7	100

Note. Negative predicting value of 92%.

^*The best clinically relevant threshold for articular involvement of subluxation with a high specificity.