Body Pigmentation as a Risk Factor for the Formation of Intracranial Aneurysms
Table 2
Results of logistic regression in Sample I.
Explanatory variables
Patients (%)
Controls (%)
Adjusted odds ratio† (95% CI)
Sample I
53
136
Hair color
Dark brown to brown
12 (22.6)
60 (44.1)
1.0
0.001 (5.60)
Light brown to dark blond
20 (37.8)
64 (47.1)
3.11 (0.86–11.27)
Blond to strawberry blonde/red
21 (39.6)
12 (8.8)
23.50*** (3.99–138.24)
Eye color
Dark color
21 (39.6)
56 (41.2)
1.0
0.40 (0.30)
Mixed color
10 (18.8)
31 (22.8)
1.07 (0.29–3.96)
Light color
22 (41.6)
49 (36.0)
0.59 (0.18–1.96)
Odds ratios were adjusted for age, sex, and smoking ( values for these covariates were 0.001, 0.040, and 0.114, resp.); # for trend; explained variance (%) by the respective variable (Nagelkerke +); *significance for odds ratios: ***.
