Table 4.

Accuracy of self-reported questionnaire compared with the taste strip test results based on the presence of BMS.

	With BMS (n = 24)			Without BMS (n = 27)			Total (n = 51)
	Hypogeusia	Dysgeusia	Hypogeusia and dysgeusia	Hypogeusia	Dysgeusia	Hypogeusia and dysgeusia	Hypogeusia	Dysgeusia	Hypogeusia and dysgeusia
	(n = 9)	(n = 17)	(n = 7)	(n = 18)	(n = 24)	(n = 18)	(n = 27)	(n = 41)	(n = 25)
Sensitivity	0.89	0.47	0.14	0.89	0.42	0.44	0.89	0.44	0.36
Specificity	0.33	0.43	0.71	0.11	0.67	0.89	0.25	0.50	0.77
PPV	0.44	0.67	0.17	0.67	0.91	0.89	0.57	0.78	0.60
NPV	0.83	0.25	0.67	0.33	0.13	0.44	0.67	0.18	0.56

BMS, burning mouth syndrome; PPV, positive predictive value; NPV, negative predictive value.

The patients with taste strip test scores <9 were considered hypogeusia.

The patients who had incorrect answers at the strongest or second stronger concentrations for one or more taste qualities were considered dysgeusia.

Hypogeusia group included patients diagnosed as hypogeusia only and both hypogeusia and dysgeusia.

Dysgeusia group included patients diagnosed as dysgeusia only and both hypogeusia and dysgeusia.