Table 2. Comparison of Clinical Outcomes Between Groups With Early and Late First Clinic Visitsa.
| Test | Early Group | Late Group | Total |
|---|---|---|---|
| Total symptom severity, mean (SD) | 32.0 (23.1) | 28.0 (18.5) | 30.4 (21.4) |
| Verbal memory, mean (SD), % | 77.9 (14.2) | 78.0 (15.6) | 77.9 (14.8) |
| Visual memory, mean (SD), % | 66.9 (13.7) | 66.8 (15.7) | 66.9 (14.5) |
| Visual motor processing speed, mean (SD), No. | 32.5 (7.3) | 33.2 (8.2) | 32.7 (7.6) |
| Reaction time, mean (SD), s | 0.70 (0.15) | 0.73 (0.21) | 0.71 (0.18) |
| Patients with scores of ≥2, No./total No. (%)b | |||
| Smooth pursuits | 65/83 (78.3) | 39/56 (69.6) | 104/139 (74.8) |
| Horizontal saccades | 66/83 (79.5) | 40/56 (71.4) | 106/139 (77.9) |
| Vertical saccades | 66/83 (79.5) | 41/56 (73.2) | 107/139 (77.0) |
| Convergence | 67/83 (80.7) | 41/56 (73.2) | 108/139 (77.8) |
| Horizontal vestibular ocular reflex | 67/82 (81.7) | 43/56 (76.8) | 110/138 (79.7) |
| Vertical vestibular ocular reflex | 64/80 (80.0) | 42/56 (75.0) | 106/136 (77.9) |
| Visual motion sensitivity | 67/80 (83.8) | 43/56 (76.8) | 114/136 (83.8) |
| Near point of convergence distance >5 cm, No./total No. (%) | 28/90 (31.1) | 17/57 (29.8) | 48/147 (32.7) |
| Recovery, mean (SD), d | 51.1 (60.5) | 66.0 (47.0) | 57.0 (55.9) |
a
The early group attended a first clinic visit within 7 days (n = 98); the late group, between 8 and 20 days (n = 64).
b
On a 0 to 10 scale via the Vestibular/Ocular Motor Screening tool.