Table 3.

Multivariate regression analysis showing an independent association between serum BDNF and pulse-pressure change.

	Crude			Model 1			Model 2
	B	95%CI	P	B	95%CI	P	B	95%CI	P
BDNF (ng/mL)	−0.381	(−0.615, −0.147)	0.002	−0.375	(−0.611, −0.140)	0.002	−0.391	(−0.609, −0.174)	0.001
Age (years)				0.197	(−0.102, 0.496)	0.190	0.219	(−0.057, 0.495)	0.118
BMI (kg/m2)				0.012	(−0.393, 0.417)	0.953	−0.285	(−0.710, 0.140)	0.183
Diastolic blood pressure (mmHg)							0.343	(0.109, 0.576)	0.005

B = linear regression coefficient, BDNF = brain-derived neurotrophic factor, BMI = body mass index, CI = confidence interval.

Model 1: adjusted for age and BMI; model 2: adjusted for age, BMI and diastolic blood pressure before taking a nap.