Table 4.

Eyes closed trial 1: all subjects (all S's), ROC, sensitivity and specificity by age groups for the first eyes-closed trial. Recommended cut-points are given as the number of correct tandem steps. The sample sizes of controls and patients per age group are given in parentheses (C/P).Without BPPV the sample size for patients is smaller and ROC values are different. See ROC no BPPV for comparison.

Age	ROC all S's	ROC no BPPV	Sensitivity	Specificity	Cut-point
all ages (292 C/90P)	0.74	0.75	0.67	0.71	5
< 50 (116 C/ 22P)	0.79	0.82	0.77	0.65	8
< 60 (154 C/ 43P)	0.79	0.81	0.70	0.75	7
50 to 69 (133 C/ 47P)	0.74	0.76	0.74	0.6	6
≥ 60 (133C/47P)	0.72	0.72	0.68	0.62	4
70 to 79 (49C/ 18P)	0.77	0.73	0.78	0.61	3
≥80 (32C/ 7P)	0.72	0.80	0.72	0.57	2