Frequency of top five individual symptoms on the PCSS
| Symptom | All (%) | Men (%) | Women (%) | NC (%) | PC (%) |
| Fatigue/low energy | 37 | 28 | 60 | 34 | 41 |
| Drowsiness | 23 | 15 | 36 | 19 | 20 |
| Neck pain | 20 | 17 | 27 | 17 | 26 |
| Difficulty concentrating | 18 | 15 | 16 | 23 | |
| Difficulty remembering | 18 | 17 | 16 | 20 | |
| Nervous or anxious | 15 | ||||
| More emotional than usual | 34 | ||||
| Headache | 27 | 20 | |||
| Irritability | 16 |
NC, never concussed; PC, previously concussed; PCSS, post-concussion symptom scale.