Mean T-scores for the Swedish universities’ scales of personality completed 1 week postinjury, split into those who had recovered by 1 year and those who reported both symptoms and disability (PCS)
| Personality variable | Recovered (n=83) | PCS (n=11) | P values | Cohen’s d | ||
| M | SD | M | SD | |||
| Anxiety proneness | ||||||
| Somatic trait anxiety | 45,3 | 7,8 | 53,8 | 11,0 | 0.030 | 0.89 |
| Psychic trait anxiety | 45,4 | 9,1 | 49,8 | 11,6 | 0.156 | 0.42 |
| Stress susceptibility | 46,9 | 10,4 | 52,1 | 15,1 | 0.145 | 0.40 |
| Low assertiveness | 46,8 | 9,7 | 43,9 | 10,5 | 0.362 | −0.04 |
| Extraversion | ||||||
| Impulsivity | 51,8 | 9,4 | 54,5 | 12,6 | 0.400 | 0.23 |
| Adventure seeking | 54,1 | 9,3 | 55,9 | 7,7 | 0.558 | 0.21 |
| Detachment | 44,2 | 8,7 | 47,7 | 8,9 | 0.216 | 0.40 |
| Embitterment | 46,7 | 8,4 | 59,3 | 15,3 | 0.022 | 1.02 |
| Social desirability | 54,4 | 9,7 | 51,3 | 9,6 | 0.311 | −0.32 |
| Aggression-hostility | ||||||
| Verbal trait aggressivity | 50,4 | 8,4 | 51,0 | 11,1 | 0.823 | 0.06 |
| Physical trait aggressivity | 47,2 | 9,0 | 53,6 | 14,6 | 0.185 | 0.53 |
| Trait irritability | 46,2 | 10,9 | 52,0 | 14,6 | 0.112 | 0.45 |
| Mistrust | 44,5 | 10,7 | 55,1 | 13,2 | 0.004 | 0.88 |
PCS, post-concussive symptoms.