Characteristics of the study population
| Patients with mTBI | References | |
| n | 93 517 | 935 170 |
| Sex (%) | ||
| Female | 42 789 (45.8) | 427 890 (45.8) |
| Male | 50 728 (54.2) | 507 280 (54.2) |
| Age, mean, years (SD) | 45.9 (21, 2) | 46.0 (21, 2) |
| Age group (%) | ||
| 18–40 years | 44 709 (47.8) | 447 080 (47.8) |
| 41–65 years | 29 761 (31.8) | 297 545 (31.8) |
| >66 years | 19 047 (20.4) | 190 545 (20.4) |
| Education (%) | ||
| ≤10 years | 39 428 (42.3) | 339 573 (36.3) |
| >10 and ≤15 years | 36 201 (38.7) | 401 613 (42.9) |
| >15 years | 10 450 (11.2) | 124 841 (13.3) |
| Unknown | 7338 (8, 0) | 69 143 (7, 4) |
| Marital status (%) | ||
| Married | 30 223 (32.3) | 382 481 (40, 9) |
| Widowed | 10 044 (10.7) | 89 328 (9.6) |
| Divorced | 11 502 (12.3) | 72 912 (7.8) |
| Unmarried | 41 748 (44.6) | 390 448 (41.8) |
| Income (%) | ||
| Low | 25 152 (26.9) | 236 282 (25.3) |
| Medium | 47 256 (50.5) | 427 495 (45.7) |
| High | 21 109 (22.6) | 271 393 (29.0) |
| Comorbidities (%) | ||
| Hypertension | 12 796 (13.7) | 121 206 (13.0) |
| Heart failure | 910 (1.0) | 7152 (0.8) |
| Stroke | 2691 (2.9) | 16.166 (1.7) |
| Epilepsy | 1283 (1.4) | 4248 (0.5) |
| Alcohol abuse | 3360 (3.6) | 4087 (0.4) |
| Drug abuse | 884 (0.9) | 1837 (0.2) |
| Dementia | 1005 (1.1) | 5558 (0.6) |
mTBI, mild traumatic brain injury.