Abstract
Abstract Background To examine the effect of mean arterial pressure on the progression of arterial stiffness in normotensive subjects. Methods The subjects who completed 2 measurements of brachial–ankle pulse wave velocity (baPWV) and were normotensive at the first baPWV measurement, were enrolled during the second, third, fourth, and fifth follow-up of the Kailuan study. Multiple linear regression was used to analyze the effect of baseline mean arterial pressure and mean arterial pressure on arterial stiffness at the end of follow-up and its progression in normotensive subjects. Results Among the 11,697 subjects who met the inclusion criteria, the average age was (43.7 ± 12.2) years old with 6,284 males (53.7%). The average follow-up time was 3.7 years, and baseline baPWV value was (1,346.2 ± 239.9) cm/s. The follow-up baPWV value was (1,403.4 ± 273.5) cm/s, and the average baPWV progression was 57.2 cm/s. In multivariate linear regression analysis, after adjustment for age, glucose, serum lipid, and other factors, an increase of 1 mm Hg in baseline mean arterial pressure resulted in an increase of 8. 6 cm/s in baPWV at the end of follow-up and 3.7 cm/s in baPWV progression, respectively. An increase of 1 mm Hg in mean arterial pressure during follow-up period resulted in an increase of 5.2 cm/s at the end of follow-up and 2.9 cm/s in baPWV progression, respectively. Conclusions Mean arterial pressures at baseline and during follow-up are associated with the progression of arterial stiffness in normotensive subjects.
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