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Comparisons of predictive values of sarcopenia with different muscle mass indices in Korean rural older adults: a longitudinal analysis of the Aging Study of PyeongChang Rural Area

机译：韩国农村老年人不同肌肉质量指数的肌肉减少症的预测值比较：平昌农村地区老龄化研究的纵向分析

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Purpose: It is important to define lean muscle mass when diagnosing sarcopenia, but there is still controversy on the clinical implication of sarcopenia derived by height, weight, and body mass index (BMI) adjusted muscle mass indices. We aimed to evaluate the longitudinal clinical relevance of 3 sarcopenia definitions in the Korean population. Patients and methods: We conducted comprehensive geriatric assessments for 1,379 community-dwelling older participants in the Aging Study of PyeongChang Rural Area (ASPRA) cohort and followed them up prospectively for death, institutionalization, and disability every 3?months. Sarcopenia was defined using the Asian Working Group consensus algorithm, combining grip strength, gait speed, and muscle mass. Results: Among 1,343 participants (mean age: 76 years, 741 women) analyzed, there were 29?deaths and 89?institutionalizations during 22.0 ± 8.3 months follow-up (mean ± SD). All three muscle indices correlated to age and sex. All sarcopenia criteria with muscle mass indices of height, weight, and body mass index (BMI) adjustment significantly predicted death or institutionalization. However, when adjusted for age and sex, only the sarcopenia criteria with muscle mass index of height adjustment were significantly associated with major adverse health outcomes. Conclusion: Adjusting age and gender, the sarcopenia definition from the quintile-based muscle index of height adjustment could predict death or institutionalization in Korean community-dwelling older adults.
机译：目的：在诊断肌肉减少症时，定义瘦肌肉质量很重要，但是在通过高度，体重和体重指数（BMI）调整后的肌肉质量指数得出的肌肉减少症的临床意义上仍存在争议。我们旨在评估韩国人群中3种肌肉减少症定义的纵向临床相关性。患者和方法：我们对平昌农村地区（ASPRA）老年研究的1379名社区居民老年参与者进行了全面的老年医学评估，并每3个月对他们进行死亡，机构化和残疾的随访。肌肉减少症是使用亚洲工作组共识算法定义的，结合了握力，步态速度和肌肉质量。结果：在分析的1,343名参与者（平均年龄：76岁，741名女性）中，在22.0±8.3个月的随访中（平均±SD）有29例死亡和89例住院治疗。所有这三个肌肉指数都与年龄和性别相关。所有肌肉减少指数的身高，体重和体重指数（BMI）调整肌肉指数均显着预测了死亡或机构化。但是，当按年龄和性别进行调整时，只有肌肉减少指数和身高调整后的肌肉减少症标准才与主要的不良健康结果显着相关。结论：调整年龄和性别，从基于五分位数的身高调整肌肉指数中得出的肌肉减少症定义可以预测韩国社区老年人的死亡或机构化。

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