Bone strength and arterial stiffness impact on cardiovascular mortality in a general population

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Abstract

Osteoporosis and increased arterial stiffness independently have been found to be associated with higher cardiovascular events rates in the general population (GP). We examined 558 patients from GP by dual-energy X-ray absorptiometry (DXA) and pulse wave velocity (PWV) measurements at baseline, with 36-month follow-up period. DXA assessed bone mineral density of femoral neck (BMD FN) and lumbar spine (BMD LS). Carotid-femoral PWV was assessed by pulsed-Doppler. The aim of our study is to find correlation between bone strength and arterial stiffness and their impact on cardiovascular mortality in GP. The mean ± SD of BMD FN, BMD LS, and PWV was 0.852±0.1432 g/cm2, 0.934±0.1546 g/cm2, and 9.209±1.9815 m/s. In multiple regression analysis we found BMD FN (βst =-6.0094, p<0.0001), hypertension (βst = 1.7340, p<0.0091), and diabetes (βst=0.4595, p<0.0046). With Cox-regression analysis, after 17 cardiovascular events, the significant covariates retained by the backward model were BMD FN (b=-2.4129, p=0.015) and PWV (b=0.2606, p=0.0318). The cut-off values were PWV = 9.4 m/s, BMD FN = 0.783 g/cm2, and BMD LS = 0.992 g/cm2. The results for BMD FN and PWV hazard ratio risk were 1.116 and 1.297, respectively. BMD FN as a measure of bone strength and PWV as a measure of arterial stiffness are strong independent predictors of cardiovascular mortality in GP.

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Avramovski, P., Avramovska, M., & Sikole, A. (2016). Bone strength and arterial stiffness impact on cardiovascular mortality in a general population. Journal of Osteoporosis, 2016. https://doi.org/10.1155/2016/7030272

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