| Journal of Clinical Medicine Research, ISSN 1918-3003 print, 1918-3011 online, Open Access |
| Article copyright, the authors; Journal compilation copyright, J Clin Med Res and Elmer Press Inc |
| Journal website http://www.jocmr.org |
Original Article
Volume 6, Number 5, October 2014, pages 379-383
Chronic Subdural Hematoma in Patients Over 90 Years Old in a Super-Aged Society
Figure

Tables
| Surgery | Conservative | Significance | Statistics | |
|---|---|---|---|---|
| n: number of cases; SD: standard deviation; NS: not significant. | ||||
| Gender | NS | Chi-square test | ||
| Male n (%) | 6 (50.0) | 5 (62.5) | ||
| Female n (%) | 6 (50.0) | 3 (37.5) | ||
| Mean age years ± SD | 92.2 ± 1.8 | 93.1 ± 2 | NS | t-test |
| Hematoma location | NS | Chi-square test | ||
| Left n (%) | 5 (41.7) | 3 (37.5) | ||
| Right n (%) | 5 (41.7) | 2 (25.0) | ||
| Bilateral n (%) | 2 (16.6) | 3 (37.5) | ||
| Maximum thickness (mm) ± SD | 28.2 ± 5.4 | 17.0 ± 3.8 | *P < 0.01 | t-test |
| History of head injury n (%) | 5 (41.7) | 5 (62.5) | NS | Chi-square test |
| Past history of dementia n (%) | 5 (41.7) | 2 (25.0) | NS | Chi-square test |
| Antiplatelet/coagulation therapy n (%) | 3 (25.0) | 4 (50.0) | NS | Chi-square test |
| Symptoms n (%) | Surgery | Conservative |
|---|---|---|
| $: duplication of symptoms. | ||
| Hemiparesis/gait disturbance | 9 (75.0)$ | 3 (37.5) |
| Consciousness disturbance | 3 (25.0)$ | 4 (50.0) |
| Speech disturbance | 3 (25.0)$ | 0 (0.0) |
| Urinary incontinence | 1 (8.3) | 0 (0.0) |
| Absence of symptoms | 0 (0.0) | 1 (12.5) |