Table I.

Severity scores and severity classes for audiological and vestibular deficits.

Audiological severity scores; n. pts	Audiological severity categories; n. pts
Score 0: normal (< 20 dB HL); n. 6 pts	Class 0 (score 0); n. 6 pts
Score 1: mild (> 20 to ≤ 40 dB HL); n. 8 pts	Class 1 (scores 1-2); n. 10 pts
Score 2: moderate (> 40 to ≤ 70 dB HL); n. 2 pts	Class 2 (scores 3-4); n. 10 pts
Score 3: severe (> 70 to ≤ 90 dB HL); n. 1 pts
Score 4: profound (> 90 dB HL): n. 9 pts
Vestibular severity scores; n. pts	Vestibular severity categories; n. pts
Score 0: normal; n. 9 pts	Class 0 (score 0); n. 9 pts
Score 1: unilateral weakness at the caloric test and/or asymmetric VHIT and/or positive HST; n. 4 pts	Class 1 (scores 1-2); n. 7 pts
Score 2: unilateral areflexia at the caloric test and/or VOR gain reduction at VHIT; n. 3 pts	Class 2 (scores 3); n. 10 pts
Score 3: spontaneous nystagmus presence; n. 10 pts
Cumulative audio-vestibular score	Audio-vestibular severity categories; n. pts
Scores 1-7: sum of audiological and vestibular scores	Class 1 (scores 1-3); n. 16 pts
	Class 2 (scores 4-7); n. 10 pts
n: number; pts: patients.