Table 3. The association between cerebral blood flow and white matter hyperintensity volume.

CBF	Crude β (95% CI)	P	Adjusted β (95% CI)	P a
aAdjusted for age, gender, hypertension, diabetes mellitus, dyslipidemia, and smoking; badjusted for age, gender, hypertension, diabetes mellitus, dyslipidemia, smoking, and WMH CBF. CI: cofidence interval; CBF: cerebral blood flow; WMH: white matter hyperintensity; NAWM: normal-appearing white matter; GM: gray matter.
WMH CBF	−1.77 (−2.68, −0.86)	0.001	−2.23 (−3.04, −1.41)	<0.001a
NAWM CBF	−3.43 (−5.28, −15.78)	0.001	−0.23 (−3.51, 3.04)	0.875b
GM CBF	−3.46 (−5.93, −0.99)	0.009	0.12 (−3.24, 3.49)	0.935b
Global CBF	−2.04 (−2.85, −1.22)	<0.001	−0.23 (−2.85, 2.39)	0.846b