Osteoporosis International

, Volume 26, Issue 12, pp 2793–2802 | Cite as

Comparative performance of current definitions of sarcopenia against the prospective incidence of falls among community-dwelling seniors age 65 and older

  • H. A. Bischoff-Ferrari
  • J. E. Orav
  • J. A. Kanis
  • R. Rizzoli
  • M. Schlögl
  • H. B. Staehelin
  • W. C. Willett
  • B. Dawson-Hughes
Original Article

Abstract

Summary

In this study, we compare the extent to which seven available definitions of sarcopenia and two related definitions predict the rate of falling. Our results suggest that the definitions of Baumgartner and Cruz-Jentoft best predict the rate of falls among sarcopenic versus non-sarcopenic community-dwelling seniors.

Introduction

The purpose of the study is to compare the extent to which seven available definitions of sarcopenia and two related definitions predict the prospective rate of falling.

Methods

We studied a cohort of 445 seniors (mean age 71 years, 45 % men) living in the community who were followed with a detailed fall assessment for 3 years. For comparing the rate of falls in sarcopenic versus non-sarcopenic individuals, we used multivariate Poisson regression analyses adjusting for gender and treatment (original intervention tested vitamin D plus calcium against placebo). Of the seven available definitions, three were based on low lean mass alone (Baumgartner, Delmonico 1 and 2) and four required both low muscle mass and decreased performance in a functional test (Fielding, Cruz-Jentoft, Morley, Muscaritoli). The two related definitions were based on low lean mass alone (Studenski 1) and low lean mass contributing to weakness (Studenski 2).

Results

Among 445 participants, 231 fell, sustaining 514 falls over the 3-year follow-up. The prospective rate of falls in sarcopenic versus non-sarcopenic individuals was best predicted by the Baumgartner definition based on low lean mass alone (RR = 1.54; 95 % CI 1.09–2.18) with 11 % prevalence of sarcopenia and the Cruz-Jentoft definition based on low lean mass plus decreased functional performance (RR = 1.82; 95 % CI 1.24–2.69) with 7.1 % prevalence of sarcopenia. Consistently, fall rate was non-significantly higher in sarcopenic versus non-sarcopenic individuals based on the definitions of Delmonico 1, Fielding, and Morley.

Conclusion

Among the definitions investigated, the Baumgartner definition and the Cruz-Jentoft definition had the highest validity for predicting the rate of falls.

Keywords

Community-dwelling seniors Comparative performance Falls Prevalence Sarcopenia 

Notes

Funding sources

The study was funded by the Baugarten Foundation and the International Foundation for the Promotion of Nutrition Research and Nutrition Education.

Conflicts of interest

None.

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Copyright information

© International Osteoporosis Foundation and National Osteoporosis Foundation 2015

Authors and Affiliations

  • H. A. Bischoff-Ferrari
    • 1
    • 2
  • J. E. Orav
    • 3
  • J. A. Kanis
    • 4
  • R. Rizzoli
    • 5
  • M. Schlögl
    • 1
    • 2
  • H. B. Staehelin
    • 6
  • W. C. Willett
    • 7
  • B. Dawson-Hughes
    • 8
  1. 1.Department of Geriatrics and Aging ResearchUniversity Hospital ZurichZurichSwitzerland
  2. 2.Centre on Aging and MobilityUniversity of ZurichZurichSwitzerland
  3. 3.Department of BiostatisticsHarvard School of Public HealthBostonUSA
  4. 4.Centre for Metabolic Bone DiseasesUniversity of SheffieldSheffieldUK
  5. 5.Service of Bone DiseasesGeneva University Hospitals and Faculty of MedicineGenevaSwitzerland
  6. 6.Department of GeriatricsUniversity of BaselBaselSwitzerland
  7. 7.Department of NutritionHarvard School of Public HealthBostonUSA
  8. 8.USDA Human Nutrition Research Center on AgingTufts UniversityBostonUSA

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