Table 2.

RRs of ECAS for classifications of hypertension and hyperhomocysteinemia at baseline.

HT	HHCY	Unadjusted		Adjusted 1		Adjusted 2
category		RR(95% CI)	P	RR(95% CI)	P	RR(95% CI)	P
No	No	1.00 (reference)	−	1.00 (reference)	−	1.00 (reference)	−
Yes	No	2.51 (1.46–4.33)	0.001	1.98 (1.14–3.43)	0.015	1.74 (0.99–3.04)	0.052
No	Yes	3.63 (2.39–5.53)	<0.001	2.34 (1.51–3.61)	<0.001	2.31 (1.49–3.58)	<0.001
Yes	Yes	6.28 (4.11–9.61)	<0.001	3.36 (2.15–5.26)	<0.001	3.16 (2.00–5.00)	<0.001

^*RR: relative risk; 95% CI: 95% confidence interval; ECAS: extracranial artery stenosis; HT: hypertension; HHCY: hyperhomocysteinemia.

Adjusted 1: Adjusted for age, sex.

Adjusted 2: Adjusted for age, sex, status of smoking and drinking, histories of DM and dyslipidemia, BMI.