Table 3.

Clinical utility indices for modified HS-SOT test conditions for distinguishing between those with complaints of vertigo, lightheadedness, and instability as compared to age-matched controls.

Condition	Sensitivity	Specificity	False Negative Rate (100−sensitivity)	False Positive Rate (100−specificity)	Positive Likelihood Ratio	Negative Likelihood Ratio	AUC	Cut-point*
SOT2a	80	40	20	60	1.33	0.50	0.62	≤91.2
HS 2 60°/sb	60	47	40	53	1.13	0.85	0.65	≤92.17
HS 2 120°/sc	58	33	42	67	0.87	1.27	0.56	≤91.42
SOT5d	67	67	33	33	2.03	0.49	0.75	≤66.34
HS 5 15°/se	85	73	15	27	3.15	0.21	0.89	≤62.67
HS 5 60°/sf	80	67	20	33	2.42	0.30	0.85	≤61.12
Slopeg	73	67	27	33	2.21	0.40	0.80	≤−7.31

^*Cut-point value represents equilibrium score discriminating between patients with complaints of vertigo, instability and/or lightheadedness and healthy age-matched controls.

^aSensory Organization Test (SOT) Conditions 2.

^bHead-shake posturography SOT condition 2 with horizontal head movements at 60°/s.

^cHead-shake posturography SOT condition 2 with horizontal head movements at 120°/s.

^dSensory Organization Test (SOT) Condition 5.

^eHead-shake posturography SOT condition 5 with horizontal head movements at 15°/s.

^fHead-shake posturography SOT condition 2 with horizontal head movements at 60°/s.

^gSlope of linear regression best fit line between condition task difficulty (^a–f) equilibrium scores.