Table 2.
Prevalence of postconcussion symptoms following mild traumatic brain injury (MTBI).
| Postconcussion symptom (Rivermead Questionnaire) |
Time 1a (%) | Time 2b (%) |
|---|---|---|
| Headaches | 50 | 50 |
| Dizziness | 52 | 60 |
| Nausea | 16 | 27 |
| Increased sensitivity to noise | 25 | 31 |
| Sleep disturbances | 66 | 63 |
| Fatigue | 70 | 69 |
| Irritability | 30 | 46 |
| Feeling depressed/teary-eyed | 25 | 25 |
| Feeling impatient | 27 | 52 |
| Forgetfulness | 48 | 58 |
| Reduced ability to concentrate | 50 | 63 |
| Slowing of thought process | 30 | 48 |
| Blurred vision | 21 | 23 |
| Increased sensitivity to light | 18 | 25 |
| Double vision | 7 | 8 |
| Feeling agitated | 5 | 15 |
a1 month after MTBI; b8 weeks after MTBI.