Table 2.

Association between history of hypertension, current blood pressure group and its interaction on volume of cerebral white matter hyperintensities^*

Variable	VWMH		VPVWMH		VDWMH
	F	P	F	P	F	P
Hypertension	0.011	0.916	0.002	0.960	0.073	0.788
SBP group	3.586	0.059	3.887	0.049	2.281	0.132
DBP group	0.341	0.559	0.296	0.587	0.292	0.589
SBP group×DBP group	3.497	0.062	3.747	0.053	2.257	0.134
SBP group×Hypertension	5.788	0.016	7.836	0.005	2.489	0.115
DBP group×Hypertension	1.168	0.280	2.414	0.121	0.136	0.713

V_wmh, volume of total white matter hyperintensity; V_PVWMH, volume of periventricular white matter hyperintensity; V_dwmh, volume of deep white matter hyperintensity; SBP, systolic blood pressure; DBP, diastolic blood pressure.

^*Analysis of covariance adjusted for intracranial volume, age, hyperlipidemia, diabetes mellitus, number of antihypertensive medications and duration of hypertension as covariates; d.f=1,492.