Table 1.

Etiology and risk factors of ischemic stroke in Turkish and Iranian patients.

Variables		Istanbul (n = 2534)	Tabriz (n = 2314)	P
Etiology (%)	Atherothrombosis	18.9	10.8	< 0.001
	Cardioembolism	22.8	16.6	< 0.001
	Small vessel diseases	20.3	3.6	< 0.001
	Other etiologies	4.9	10.5	< 0.001
	Unknown etiology	33.1	58.4	< 0.001
Age (year) (mean ± SD)		61.7 ± 13.4	68.3 ± 13.8	< 0.001
Gender (men, %)		53.9	48.6	< 0.001
Hypertension (%)		69.4	70.1	0.595
Diabetes mellitus (%)		26.7	25.0	0.168
Hyperlipidemia (%)		31.2	11.4	< 0.001
Cardiac diseases (%)		33.7	27.6	< 0.001
Smoking (%)		41.0	12.7	< 0.001
Alcohol (%)		18.0	< 5.0*	< 0.001

SD: Standard deviation

^*Roughly estimated.