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Published on: July 5, 2017
Relationship between Diabetes Status and Sarcopenia in Community-Dwelling Older Adults
Kazuhei Nishimoto1, Takehiko Doi2, Kota Tsutsumimoto2
1Department of Preventive Gerontology, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Obu, Japan; Department of Medical Sciences, Medical Science Division, Graduate School of Medicine, Science and Technology, Shinshu University, Matsumoto, Japan.
Objectives:
Diabetes mellitus (DM) is associated with risk of sarcopenia. However, whether glycated hemoglobin (HbA1c) levels are associated with sarcopenia has not reached a consensus. The purpose of this study was to examine the association between diabetes status based on HbA1c levels and sarcopenia indices in community-dwelling older adults stratified by body mass index (BMI) status.
Design:
An observational cross-sectional study.
Setting And Participants:
General community setting. The participants were 18,940 community-dwelling older adults (mean age 73.7 ± 5.7 years, 45.0% men).
Methods:
According to their medical history for diabetes mellitus and blood HbA1c levels the participants were classified into the control group (no DM history and HbA1c ≤5.6%), pre-DM group (no DM history and HbA1c 5.7%-6.4%), or DM group (DM history or HbA1c ≥6.5%). For assessments of sarcopenia, muscle mass and muscle strength were measured based on the clinical definition.
Results:
A multiple logistic regression analysis showed that the DM group did not have a clear association with sarcopenia [odds ratio (OR) 1.06, 95% confidence interval (CI) 0.82-1.38] or low muscle mass (OR 1.15, 95% CI 0.94-1.39), and was associated with low muscle strength (OR 1.21, 95% CI 1.08-1.36) in the adjusted model including BMI. There was a positive correlation between BMI and skeletal muscle index (r = 0.57, P < .001). Stratified by BMI, the DM group was associated with low muscle mass among the underweight participants (OR 1.87, 95% CI 1.03-3.39), and low muscle strength among the overweight participants (OR 1.22, 95% CI 1.04-1.43).
Conclusions And Implications:
Diabetes status was associated with low muscle mass and low muscle strength, and the association depended on BMI. Our findings could be helpful for identifying older adults with a high risk of sarcopenia, although further study is needed.
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