Table 4.
Percentage of participants reporting a score of ≥2 on the individual post-concussion symptom items over time
| Symptom | Baseline (%) | 1 month (%) | 6 months (%) | 12 months (%) |
|---|---|---|---|---|
| Headaches | 96 (63.6) | 99 (44.0) | 88 (35.9) | 105 (36.1) |
| Feelings of dizziness | 78 (51.7) | 93 (41.3) | 76 (31.0) | 83 (28.5) |
| Nausea/vomiting | 34 (22.5) | 31 (13.8) | 35 (14.3) | 37 (12.7) |
| Noise sensitivity | 67 (44.4) | 71 (31.6) | 75 (30.6) | 80 (27.5) |
| Sleep disturbance | 65 (43.0) | 86 (38.2) | 87 (35.5) | 93 (32.0) |
| Fatigue/tiring more easily | 97 (64.2) | 123 (54.7) | 117 (47.8) | 118 (40.5) |
| Being irritable/easily angered | 73 (48.3) | 82 (36.4) | 84 (34.3) | 94 (32.3) |
| Feeling depressed or tearful | 46 (30.5) | 54 (24.0) | 62 (25.3) | 70 (24.1) |
| Feeling frustrated or impatient | 77 (51.0) | 96 (42.7) | 86 (35.1) | 98 (33.7) |
| Forgetfulness/poor memory | 85 (56.3) | 108 (48.0) | 110 (44.9) | 119 (40.9) |
| Poor concentration | 78 (51.7) | 104 (46.2) | 97 (39.6) | 99 (34.0) |
| Taking longer to think | 91 (60.3) | 123 (54.7) | 107 (43.7) | 118 (40.5) |
| Blurred vision | 50 (33.1) | 60 (26.7) | 51 (20.8) | 72 (24.7) |
| Light sensitivity | 53 (35.0) | 63 (28.0) | 62 (25.3) | 68 (23.4) |
| Double vision | 16 (10.6) | 31 (13.8) | 28 (11.4) | 34 (11.7) |
| Restlessness | 66 (43.7) | 78 (34.7) | 75 (30.6) | 75 (25.8) |