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Published in: Osteoporosis International 4/2013

01-04-2013 | Original Article

Severity of aortic calcification is positively associated with vertebral fracture in older men—a densitometry study in the STRAMBO cohort

Authors: P. Szulc, E. J. Samelson, E. Sornay-Rendu, R. Chapurlat, D. P. Kiel

Published in: Osteoporosis International | Issue 4/2013

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Abstract

Summary

In older men, severe abdominal aortic calcification and vertebral fracture (both assessed using dual-energy X-ray absorptiometry) were positively associated after adjustment for confounders including bone mineral density.

Introduction

Abdominal aortic calcification (AAC) is associated with higher fracture risk, independently of low bone mineral density (BMD). Dual-energy X-ray absorptiometry (DXA) can be used to assess both vertebral fracture and AAC and requires less time, cost, and radiation exposure.

Methods

We conducted a cross-sectional study of the association between AAC and prevalent vertebral fractures in 901 men ≥50 years old. We used DXA (vertebral fracture assessment) to evaluate BMD, vertebral fracture, and AAC.

Results

Prevalence of vertebral fracture was 11 %. Median AAC score was 1 and 12 % of men had AAC score >6. After adjustment for age, weight, femoral neck BMD, smoking, ischemic heart disease, diabetes, and hypertension, AAC score >6 (vs ≤6) was associated with 2.5 (95 % CI, 1.4–4.5) higher odds of vertebral fracture. Odds of vertebral fracture for AAC score >6 increased with vertebral fracture severity (grade 1, OR = 1.8; grade 2, OR = 2.4; grade 3, OR = 4.4; trend p < 0.01) and with the number of vertebral fractures (1 fracture, OR = 2.0, >1 fracture, OR = 3.5). Prevalence of vertebral fracture was twice as high in men having both a T-score < −2.0 and an AAC score > 6 compared with men having only one of these characteristics.

Conclusions

Men with greater severity AAC had greater severity and greater number of vertebral fractures, independently of BMD and co-morbidities. DXA can be used to assess vertebral fracture and AAC. It can provide a rapid, safe, and less expensive alternative to radiography. DXA may be an important clinical tool to identify men at high risk of adverse outcomes from osteoporosis and cardiovascular disease.
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Metadata
Title
Severity of aortic calcification is positively associated with vertebral fracture in older men—a densitometry study in the STRAMBO cohort
Authors
P. Szulc
E. J. Samelson
E. Sornay-Rendu
R. Chapurlat
D. P. Kiel
Publication date
01-04-2013
Publisher
Springer-Verlag
Published in
Osteoporosis International / Issue 4/2013
Print ISSN: 0937-941X
Electronic ISSN: 1433-2965
DOI
https://doi.org/10.1007/s00198-012-2101-z

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