Table 3.

AUC and cut-off value for xerostomia with stimulated salivary flow rate.

Data set		AUC (standard error)	Cut-off (standard error)	Sensitivity	Specificity	p-value
All participants (n = 829)		0.5532 (0.0197)	1.0162 (0.0002)	0.2279	0.6460	1.0000
Sex	Male (n = 238)	0.5698 (0.0506)	1.2891 (0.0006)	0.3810	0.5025	1.0000
	Female (n = 591)	0.5495 (0.0253)	1.0117 (0.0005)	0.2660	0.6788	0.7378
Age group	Group 1 (n = 45)	0.6167 (0.0860)	1.0204 (0.0017)	0.3684	0.4483	0.4185
	Group 2 (n = 338)	0.5373 (0.0245)	1.0112 (0.0001)	0.2333	0.6154	1.0000
	Group 3 (n = 446)	0.5522 (0.0355)	0.9824 (0.0004)	0.2951	0.6507	0.7468

Results were obtained using ROC curve analysis. Group 1: 0–29 years, Group 2: 30–59 years, and Group 3: 60–100 years.