Table 1.
Demographic and clinical profiles of the study participants
| Characteristic | n (valid %) |
|---|---|
| Sex | |
| Woman | 133 (42.4) |
| Man | 181 (57.6) |
| Age, years | |
| <65 | 65 (20.1) |
| 65–74 | 82 (26.1) |
| 75–84 | 110 (35.0) |
| ≥85 | 57 (18.2) |
| Mean ± SD, range | 72.7±12.9 |
| Disease duration (days) | |
| <10 | 99 (31.5) |
| 10–29 | 61 (19.4) |
| 30–59 | 55 (17.8) |
| 60–180 | 96 (30.6) |
| Undetectablea | 2 (0.6) |
| Mean ± SD, range | 45.7±47.8 |
| Etiology | |
| Infarction | 204 (65.0) |
| Hemorrhage | 67 (21.3) |
| Subarachnoid hemorrhage | 12 (3.8) |
| Trauma | 11 (3.5) |
| Others | 20 (5.7) |
| Brain lesion | |
| Left hemisphere | 132 (42.0) |
| Right hemisphere | 101 (32.2) |
| Bilateral hemisphere | 13 (4.1) |
| Cerebellum/brainstem | 36 (11.5) |
| Othersb | 26 (8.3) |
| Missingc | 6 (1.9) |
| Brain injury severity | |
| mRS 0 | 7 (2.2) |
| mRS 1 | 34 (10.8) |
| mRS 2 | 71 (22.6) |
| mRS 3 | 54 (17.2) |
| mRS 4 | 110 (35.0) |
| mRS 5 | 38 (12.1) |
| mRS 6 | 0 (0) |
| Mean ± SD | 3.1±1.3 |
mRS, Modified Rankin Scale; SD, standard deviation.
a
Undetectable onset day of chronic subdural hematoma patients who had not undergone surgery.
b
Atypical lesion (e.g., hemispheric and cerebellum/brainstem simultaneous lesions caused by multiple cerebral infarctions or lesions without focal sites caused by hydrocephalus, subarachnoid hemorrhage, subdural hematoma, or epilepsy.
c
Containing data inadequacy.