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Reference values of brachial-ankle pulse wave velocity according to age and blood pressure in a central Asia population.

Reference values of brachial-ankle pulse wave velocity according to age and blood pressure in a central Asia population.
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Yiming G, Zhou X, Lv W, Peng Y, Zhang W, Cheng X, Li Y, Xing Q, Zhang J, Zhou Q, Zhang L, Lu Y, Wang H, Tang B,


Yiming G, Zhou X, Lv W, Peng Y, Zhang W, Cheng X, Li Y, Xing Q, Zhang J, Zhou Q, Zhang L, Lu Y, Wang H, Tang B, (click to view)

Yiming G, Zhou X, Lv W, Peng Y, Zhang W, Cheng X, Li Y, Xing Q, Zhang J, Zhou Q, Zhang L, Lu Y, Wang H, Tang B,

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PloS one 2017 04 1212(4) e0171737 doi 10.1371/journal.pone.0171737
Abstract
BACKGROUND
Brachial-ankle pulse wave velocity (baPWV), a direct measure of aortic stiffness, has increasingly become an important assessment for cardiovascular risk. The present study established the reference and normal values of baPWV in a Central Asia population in Xinjiang, China.

METHODS
We recruited participants from a central Asia population in Xinjiang, China. We performed multiple regression analysis to investigate the determinants of baPWV. The median and 10th-90th percentiles were calculated to establish the reference and normal values based on these categories.

RESULTS
In total, 5,757 Han participants aged 15-88 years were included in the present study. Spearman correlation analysis showed that age (r = 0.587, p < 0.001) and mean blood pressure (MBP, r = 0.599, p <0.001) were the major factors influencing the values of baPWV in the reference population. Furthermore, in the multiple linear regression analysis, the standardized regression coefficients of age (0.445) and MBP (0.460) were much higher than those of body mass index, triglyceride, and glycemia (-0.054, 0.035, and 0.033, respectively). In the covariance analysis, after adjustment for age and MBP, only diabetes was the significant independent determinant of baPWV (p = 0.009). Thus, participants with diabetes were excluded from the reference value population. The reference values ranged from 14.3 to 25.2 m/s, and the normal values ranged from 13.9 to 21.2 m/s. CONCLUSIONS
This is the first study that has established the reference and normal values for baPWV according to age and blood pressure in a Central Asia population.

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