BioMed Research International / 2014 / Article / Tab 4

Research Article

Body Pigmentation as a Risk Factor for the Formation of Intracranial Aneurysms

Table 4

Results of logistic regression in data combined from Samples I and II.

Explanatory variablesPatients
(%)
Controls
(%)
Adjusted odds ratio
(95% CI)
  

Samples I + II111174

Hair color
 Dark brown to brown24 (21.6)85 (48.9)1.00.001 (13.40)
 Light brown to dark blond43 (38.7)74 (42.5)2.84** (1.45–5.58)
 Blond to strawberry blonde/red44 (39.6) 15 (8.6)10.82*** (4.71–24.87)
Eye color
 Dark color35 (31.5)69 (39.7)1.00.55 (0.20)
 Mixed color27 (24.3)37 (21.3)1.73 (0.85–3.56)
 Light color49 (44.1)68 (39.1)1.22 (0.66–2.25)

Odds ratios were adjusted for age, sex, and smoking ( values for these covariates were 0.001, 0.001, and 0.018, resp.); # for trend; explained variance (%) by the respective variable (Nagelkerke +); *significance for odds ratios: ** , *** .