Table 1.
Baseline characteristics of the study subjects.
| Variables | Patients with minor head injury | Control | P value | ||
|---|---|---|---|---|---|
| n = 14026 | % | n = 14026 | % | ||
| Gender | 1.000 | ||||
| Female | 7023 | 50.1 | 7023 | 50.1 | |
| Male | 7003 | 49.9 | 7003 | 49.9 | |
| Age | 0.416 | ||||
| ≤75 | 7,456 | 53.2 | 7,524 | 53.6 | |
| >75 | 6,570 | 46.8 | 6,502 | 46.4 | |
| Comorbidity | |||||
| DM | 5,074 | 36.2 | 4,496 | 32.1 | <0.001 |
| Hypertension | 10,550 | 75.2 | 9,852 | 70.2 | <0.001 |
| Chronic kidney disease | 1,296 | 9.2 | 1,038 | 7.4 | <0.001 |
| Chronic liver disease | 3,495 | 24.9 | 3,024 | 21.6 | <0.001 |
| Rheumatic heart disease | 489 | 3.5 | 380 | 2.7 | <0.001 |
| Ischemic heart disease | 6,571 | 46.8 | 5,647 | 40.3 | <0.001 |
| Af/AF | 749 | 5.3 | 676 | 4.8 | 0.047 |
| Heart failure | 2,677 | 19.1 | 2,206 | 15.7 | <0.001 |
| Peripheral artery occlusion | 76 | 0.5 | 51 | 0.4 | 0.026 |
| Deep vein thrombosis | 337 | 2.4 | 283 | 2.0 | 0.028 |
| Hydrocephalus | 214 | 1.5 | 75 | 0.5 | <0.001 |
| Subdural hematoma | 254 | 1.8 | 93 | 0.7 | <0.001 |
| Followup year (mean ± SD) | 4.39 ± 3.18 | 4.68 ± 3.15 | |||