Table V.

Coordinates of the ROC Curve for the cut-off. Value of the P-QOD and QOD-NS subscales of the Brief-IT-QOD.

	Cut-off value	Sensitivity	Specificity
P-QOD	-1,00	1.00	0
	0.50	0.813	0.528
	1.50	0.750	0.641
	2.50	0.670	0.669
	3.50	0.625	0.803
	4.50	0.509	0.859
	5.50	0.402	0.908
	6.50	0.304	0.972
	7.50	0.259	0.972
	8.50	0.152	1.000
	9.50	0.080	1.000
	10.50	0.027	1.000
	11.50	0.009	1.000
QOD-NS	-1,00	1.000	0
	0.50	0.571	0.817
	1.50	0.554	0.866
	2.50	0.464	0.894
	3.50	0.429	0.923
	4.50	0.375	0.944
	5.50	0.321	0.951
	6.50	0.295	0.965
	7.50	0.250	0.986
	8.50	0.232	0.986
	9.50	0.205	0.986
	10.50	0.152	0.993
	11.50	0.125	1.000