Table 4.

Final regression models for the association of Δβ₀ with ΔMAP

	Δβ0
	β (95% CI) (mm Hg−1)	P value
Crude	−0.042 (−0.092; 0.009)	0.103
Model 2	−0.040 (−0.090; 0.010)	0.119
Model 3	−0.043 (−0.097; 0.011)	0.119

Abbreviations: Δ denotes (follow-up value–baseline value)/(follow-up time in years) β, unstandardized regression coefficient; β₀, pressure-independent stiffness index according to equation (4); BMI, body mass index; CI, 95% confidence interval; MAP, mean arterial pressure. Model 2: crude model + corrected ΔIMT, ΔHR, and use of antihypertensive drugs at the first visit. Model 3: model 2 + age, sex, smoking status, BMI, diabetes status, and hypercholesterolemia.