Table 1.
Demographic, vestibular function, and triangle completion task results.a
| Young controls, N = 9 | BLSA controls, N = 15 | Neurotology Clinic patients, N = 24 | p Value | |
|---|---|---|---|---|
| Age (mean, SD) | 30.8 (6.3) | 69.1 (12.2) | 69.3 (10.1) | <0.01 |
| Sex (n, %) | ||||
| Male | 3 (33.3) | 9 (60.0) | 11 (45.8) | |
| Female | 6 (66.7) | 6 (40.0) | 13 (54.2) | 0.45 |
| Race (n, %) | ||||
| White | 2 (22.2) | 13 (86.7) | 15 (62.5) | |
| African-American | 3 (33.3) | 1 (6.7) | 5 (20.8) | |
| Other | 4 (44.4) | 1 (6.7) | 4 (16.7) | 0.01 |
| Cervical VEMP (cVEMP) function category (n, %) | ||||
| Present | 9 (100) | 13 (86.7) | 0 | |
| Unilaterally absent | 0 | 0 | 12 (50.0) | |
| Bilaterally absent | 0 | 2 (13.3) | 12 (50.0) | <0.01 |
| cVEMP amplitude of the better ear (μV, SD) | 3.4 (0.8) | 1.4 (0.6) | 0.6 (0.3) | <0.01 |
| VOR gain category (n, %) | ||||
| Normal | 8 (88.9) | 6 (40.0) | 1 (4.2) | |
| Unilaterally abnormal | 1 (11.1) | 5 (33.3) | 13 (54.2) | |
| Bilaterally abnormal | 0 | 3 (20.0) | 6 (25.0) | 0.15 |
| VOR gain of the better ear (SD) | 1.0 (0.0) | 1.0 (0.1) | 0.9 (0.3) | 0.56 |
| Distance of deviation (cm, SD) | 27.8 (13.4) | 45.4 (28.2) | 67.7 (38.6) | <0.01 |
| Angle of deviation (°, SD) | 12.4 (4.5) | 13.3 (12.9) | 22.1 (13.1) | 0.04 |
aYoung controls were <55 years old. Older controls were ≥55 years old from the Baltimore Longitudinal Study of Aging (BLSA). Dizzy patients were recruited from the Neurotology Clinic. Statistically significant results are bolded. For participants with unilaterally absent cVEMP response, cVEMP parameters from the remaining ear were included. Individuals with bilaterally absent cVEMP responses were excluded from the cVEMP amplitude calculations.
cVEMP, cervical vestibular-evoked myogenic potential; VOR, vestibulo-ocular reflex.