Research Article
Body Pigmentation as a Risk Factor for the Formation of Intracranial Aneurysms
Table 1
Summary of sample characteristics.
| | | Patients | Controls | | | (%) | (%) |
| | Sample I | 53 | 136 |
| | Sex | | | | Males | 16 (30.2) | 68 (50.0) | | Females | 37 (69.8) | 68 (50.0) | | Smoking status | | | | Smokers | 34 (64.2) | 80 (58.8) | | Nonsmokers | 19 (35.8) | 56 (41.2) | | Age (mean/SD) | | |
| | Sample II | 58 | 38 |
| | Sex | | | | Males | 17 (29.3) | 25 (65.8) | | Females | 41 (70.7) | 13 (34.2) | | Smoking status | | | | Smokers | 41 (70.7) | 22 (57.9) | | Nonsmokers | 17 (29.3) | 16 (42.1) | | Age (mean/SD) | | |
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