Table 1.

Demographic characteristics.

Demographic characteristics	Cognitive		p-value*
	Normal	Impaired
Sex
Male	16	14	0.637
Female	16	20
Diabetes
Yes	8	17	0.066
No	24	17
Smoking
Yes	11	13	0.944
No	21	21
Treatment using ace inhibitor
Yes	12	17	0.439
No	20	17
Treatment using angiotensin receptor blocker
Yes	6	5	0.912
No	26	29
Treatment using calcium channel blocker
Yes	12	20	0.137
No	20	14

^*Chi-Square test.