Table 5.

Correlations between ATVA subgroups in definite MD patients (n = 114).

	Data available, n	MD-120 (n = 69)	MD-intermediate (n = 29)	MD-140 (n = 16)	P
Female: male ratio	114	44:25	15:14	5:11	0.053
Unilateral: bilateral MD ratio	114	63:6	29:0	11:5	0.0045
Mean age at MRI, y	114	54.7 ± 13.2	59.2 ± 13.1	61.4 ± 10.5	0.144
Tinnitus, n (%)	83	39 (83.0)	24 (96.0)	10 (90.9)	0.121
Aural fullness, n (%)	64	33 (89.2)	17 (89.5)	8 (100)	1.000
Headache, n (%)	77	20 (44.4)	14 (58.3)	4 (50.0)	0.526
Hearing loss
Mean age of onset, y	44	48.7 ± 14.6	56.8 ± 14.3	50.5 ± 18.8	0.495
Median disease duration, y	44	4.5 (0.0; 17.0)	5.7 (1.6; 12.9)	8.5 (0.3; 29.0)	0.522
Median low Fletcher, dB	97	48. (2; 108)	53 (13; 75)	45 (23; 120)	0.900
Median high Fletcher, dB	97	49 (5; 108)	52 (18; 75)	50 (28; 120)	0.977
Vertigo
Mean age of onset, y	80	48.9 ± 14.2	50.8 ± 12.9	45.4 ± 11.6	0.483
Median disease duration, y	80	2.8 (0.1; 30.7)	4.9 (1.1; 11.0)	16.0 (0.4; 29.0)	0.006
Mean vertigo attack frequency, nr per month	70	6.3 ± 6.9	8.2 ± 10.8	5.0 ± 8.8	0.486
Drop attacks, n (%)	49	2 (6.3)	1 (11.1)	1 (12.5)	0.432
ENG hypofunction, n (%)	39	15 (55.5)	3 (42.9)	2 (40.0)	0.694
EH
Cochlear EH grade	114	1 (0; 2)	1 (0; 2)	1 (0; 2)	0.409
Vestibular EH grade	114	2 (0; 3)	2 (0; 3)	2 (1; 3)	0.589
Perilymph enhancement
Median SIR	114	1.45 (0.68; 5.0)	1.64 (0.71; 5.52)	1.48 (0.93; 3.66)	0.742

EH, endolymphatic hydrops; ENG, electronystagmography; MRI, magnetic resonance imaging; SIR, signal intensity ratio.