Table 5.

Areas under the ROC curve for dimensions associated with disability

	AUC	95% CI	p	Threshold	Se	Sp	PPV	PNV
SF36
Physical pain	0.74	0.61–0.85	0.0005*	≤ 66.5	90	54.29	52.9	90.5
Physical functioning	0.77	0.64–0.88	< 0.0001*	≤ 85	95	62.86	59.4	95.7
Social functioning	0.77	0.63–0.87	< 0.0001*	≤ 75	90	57.1	54.5	90.9
Role limitations due to physical problems	0.70	0.56–0.82	0.0050*	≤ 50	70	71.4	58.3	80.6
Average physical score	0.76	0.63–0.87	0.0001*	≤ 47.3	70	80	66.7	82.4
Average emotional score	0.7	0.57–0.82	0.0057*	≤ 62.2	80	60	53.3	84
NHP
Mobility	0.81	0.68–0.9	< 0.0001*	> 8.51	90	65.7	60	92
Pain	0.73	0.59–0.84	0.0009*	> 29.54	65	77.1	61.9	79.4
Energy	0.82	0.69–0.91	< 0.0001*	> 61.02	65	88.2	76.5	81.1
Emotional reactions	0.68	0.54–0.80	0.0131*	> 0	75	60	51.7	80.8

AUC, 95%CI and threshold values expressed in numerical values. Se, Sp, VPP and VPN expressed in percentages. *p < 0.05. Se, sensibility; Sp, specificity; PPV, positive predictive value and NPV, negative predictive value