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Prospective associations of osteosarcopenia and osteodynapenia with incident fracture and mortality over 10 years in community-dwelling older adults
journal contribution
posted on 2019-05-01, 00:00 authored by S Balogun, T Winzenberg, K Wills, David ScottDavid Scott, M Callisaya, F Cicuttini, G Jones, D AitkenAim: To determine whether older adults with low muscle mass (sarcopenia) and strength (dynapenia), in the presence of osteoporosis/osteopenia, have an increased risk of fracture and mortality over 10 years, compared to those with low muscle or low bone mass alone or with neither condition. Methods: 1032 participants (52% women; mean age 62.9 ± 7.4 years) were prospectively followed for 10 years. Mortality was ascertained from the death registry and fractures were self-reported. Baseline appendicular lean mass (ALM) was assessed using dual-energy X-ray absorptiometry and normalised to body mass index (BMI). Hand grip strength (HGS) was assessed by dynamometer. Osteosarcopenia and osteodynapenia were defined as having T-scores of the total hip and/or lumbar spine bone mineral density (BMD) < –1 combined with being in the lowest 20% of the sex-specific distribution for ALM/BMI or HGS respectively. Results: Incident fracture risk was significantly higher in participants who were osteodynapenic (RR = 2.07, 95% CI: 1.26–3.39), dynapenic alone (RR = 1.74, 95% CI: 1.05–2.87), and osteopenic alone (RR = 1.63, 95% CI: 1.15–2.31), compared to those without dynapenia or osteopenia. Mortality risk was significantly higher only in participants with osteosarcopenia (RR = 1.49, 95% CI: 1.01–2.21) compared to those without sarcopenia or osteopenia. However, osteosarcopenia and osteodynapenia did not lead to a significantly greater fracture or mortality risk compared to having these conditions on their own. Conclusion: These findings suggest that the combined effect of osteopenia and sarcopenia or dynapenia on fracture and mortality risk, respectively, may not be greater than that of each individual condition.
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Journal
Archives of Gerontology and GeriatricsVolume
82Issue
May-JunePagination
67 - 73Publisher
Elsevier IrelandLocation
Shannon, IrelandPublisher DOI
ISSN
0167-4943eISSN
1872-6976Language
engPublication classification
C1 Refereed article in a scholarly journalCopyright notice
2019, ElsevierUsage metrics
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