Links between arterial stiffness and bone mineral density in middle-aged and elderly Chinese individuals: a cross-sectional study
Objectives To explore whether bone mineral density (BMD) is associated with arterial stiffness in middle-aged and elderly people with an advanced arterial stiffness index as indicated by the cardio-ankle vascular index (CAVI).Design A cross-sectional study.Setting This study was conducted from Septe...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
BMJ Publishing Group
2019-08-01
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| Series: | BMJ Open |
| Online Access: | https://bmjopen.bmj.com/content/9/8/e029946.full |
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| Summary: | Objectives To explore whether bone mineral density (BMD) is associated with arterial stiffness in middle-aged and elderly people with an advanced arterial stiffness index as indicated by the cardio-ankle vascular index (CAVI).Design A cross-sectional study.Setting This study was conducted from September 2015 to May 2017 at the geriatrics department of a provincial medical centre in China.Participants A total of 580 patients aged 50 and over were enrolled in the study. The mean age of the group was 64.82±11.4 years, and 63.1% were male.Primary outcome measures Associations of age with CAVI values and BMD. Associations between BMD and CAVI values.Results With increasing age, CAVI values gradually increased (p<0.001) and the femoral neck (FN) and total hip (TH) BMD gradually decreased (p<0.001, all). In the bivariate correlation analyses between the covariates and CAVI values, age and CAVI values showed the greatest positive correlation (r=0.631, p<0.001), and CAVI values were negatively correlated with FN BMD (r=−0.229, p<0.001) and TH BMD (r=−0.218, p<0.001). In the linear regression analyses, TH BMD (B=−1.812 (95% CI −2.475 to −1.149), p<0.001) and FN BMD (B=−1.968 (95% CI −2.651 to −1.284), p<0.001) were negatively correlated with CAVI values. After adjusting for age, gender, body mass index, smoking, history of cardiovascular or cerebrovascular disease, history of diabetes mellitus, systolic blood pressure, high-density lipoprotein cholesterol, blood uric acid, fibrinogen and estimated glomerular filtration rate, only TH BMD was still negatively correlated with CAVI values (B=−0.843 (95%CI −1.454 to −0.232), p=0.007). However, there was no consistent and significant correlation between lumbar spine BMD and CAVI values.Conclusion In this cross-sectional study, a significant correlation between TH BMD and CAVI values was observed in middle-aged and elderly Chinese inpatients. However, our cohort was a small sample of inpatients, and prospective studies from more centres are expected. |
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| ISSN: | 2044-6055 |