Table 2.
Proportion of participants experiencing significant impairment over the year after mild TBI
| Impairment, n participants (%) | ||||
|---|---|---|---|---|
|
| ||||
| At baseline | At 1 month | At 6 months | At 12 months | |
| Post-concussion symptomsa | 107 (70.9) | 130 (57.8) | 122 (49.8) | 139 (47.9) |
| Health-related quality of life — mental component (SF-36)b | 93 (62.8) | 120 (53.6) | 117 (48.3) | 140 (48.1) |
| Health-related quality of life — physical component (SF-36)b | 112 (75.7) | 138 (61.1) | 117 (48.3) | 138 (47.4) |
| Cognitive functioning (CNS-VS Neurocognitive Index)b | 15 (12.5) | 19 (10.0) | 21 (11.4) | 26 (10.5) |
| Depression (HADS)a | 30 (18.6) | 38 (16.5) | 38 (15.0) | 36 (12.1) |
| Anxiety (HADS)a | 68 (42.2) | 69 (30.0) | 84 (33.2) | 87 (29.3) |
| Global functioning (GOS)b | 67 (20.0) | 35 (15.1) | 31 (12.2) | 31 (10.4) |
a
Higher scores indicate poorer outcome.
b
Higher scores indicate better outcome. GOS = Glasgow Outcome Scale. HADS = Hospital Anxiety and Depression Scale. SF-36 = 36-item medical outcomes Short Form Survey.