Table 1.

Differences in baseline characteristics between healthy controls and patients with aneurysmal subarachnoid hemorrhage.

	Patients	Controls	P-value
Gender (male/female)	113/144	44/56	0.996
Age (years)	51.1 ± 10.6	50.6 ± 13.1	0.214
Cigarette smoking	83 (32.3%)	31 (31.0%)	0.814
Alcohol drinking	66 (25.7%)	28 (28.0%)	0.655

Variables were reported as count (proportion) or mean ± standard deviation as appropriate. Statistical methods included the student t-test and χ² test.