W Xu1, T Chen, Y Cai, Y Hu, L Fan, C Wu. 1. Li Fan, No.28 Fuxing Road, Haidian District, Beijing, China, 100853, Phone: (+86)133 0110 0573, Email: fanli301@hotmail.com.
Abstract
OBJECTIVES: Sarcopenia is an age-related geriatric syndrome and is associated with numerous adverse outcomes. Although there is preponderance of studies on sarcopenia in community setting, few studies focused on the oldest old. We investigated the prevalence of sarcopenia in Chinese community-dwelling oldest old and examined the socio-demographic and lifestyle factors of sarcopenia. We also investigated the association between sarcopenia and disability in activities of daily living (ADL) and physical function among the oldest old. DESIGN: Cross-sectional study. SETTING: Urban community in Beijing, China. PARTICIPANTS: 664 community-dwelling older adults aged 80 years or older. METHODS: The presence of sarcopenia and the relationship between sarcopenia and physical function and disability were examined in 582 adults aged 80 years and older. we used the backward stepwise logistic regression model to explore socio-demographic and lifestyle correlates of sarcopenia. Sarcopenia was assessed by an algorithm recommended by the Asian Working Group for Sarcopenia (AWGS). RESULTS: The overall prevalence of sarcopenia was 26.6% (female 21.7%; male 33.3%). Age (odds ratio [OR] = 1.14, 95% confidence interval [CI]: 1.06 - 1.22), body mass index (OR = 0.80, 95% CI: 0.73 - 0.89), and Mini-nutritional assessment (MNA) scores (OR = 0.78, 95% CI: 0.64 - 0.96) were independently associated with sarcopenia. The Odds of disability in ADL was approximately two times greater in oldest old with sarcopenia than those without. Sarcopenia was associated with poor lower extremity strength. Oldest old with sarcopenia have higher odds to reported difficulty in stooping, kneeing, or crouching, carrying weights over 5 kilograms, and walking 400 meters. CONCLUSION AND IMPLICATIONS: We found over a quartile of the community-dwelling oldest old in China had sarcopenia. Older age, lower BMI, and worse nutritional status were significantly associated with the presence of sarcopenia. Sarcopenia was independently associated with disability and poor physical function.
OBJECTIVES:Sarcopenia is an age-related geriatric syndrome and is associated with numerous adverse outcomes. Although there is preponderance of studies on sarcopenia in community setting, few studies focused on the oldest old. We investigated the prevalence of sarcopenia in Chinese community-dwelling oldest old and examined the socio-demographic and lifestyle factors of sarcopenia. We also investigated the association between sarcopenia and disability in activities of daily living (ADL) and physical function among the oldest old. DESIGN: Cross-sectional study. SETTING: Urban community in Beijing, China. PARTICIPANTS: 664 community-dwelling older adults aged 80 years or older. METHODS: The presence of sarcopenia and the relationship between sarcopenia and physical function and disability were examined in 582 adults aged 80 years and older. we used the backward stepwise logistic regression model to explore socio-demographic and lifestyle correlates of sarcopenia. Sarcopenia was assessed by an algorithm recommended by the Asian Working Group for Sarcopenia (AWGS). RESULTS: The overall prevalence of sarcopenia was 26.6% (female 21.7%; male 33.3%). Age (odds ratio [OR] = 1.14, 95% confidence interval [CI]: 1.06 - 1.22), body mass index (OR = 0.80, 95% CI: 0.73 - 0.89), and Mini-nutritional assessment (MNA) scores (OR = 0.78, 95% CI: 0.64 - 0.96) were independently associated with sarcopenia. The Odds of disability in ADL was approximately two times greater in oldest old with sarcopenia than those without. Sarcopenia was associated with poor lower extremity strength. Oldest old with sarcopenia have higher odds to reported difficulty in stooping, kneeing, or crouching, carrying weights over 5 kilograms, and walking 400 meters. CONCLUSION AND IMPLICATIONS: We found over a quartile of the community-dwelling oldest old in China had sarcopenia. Older age, lower BMI, and worse nutritional status were significantly associated with the presence of sarcopenia. Sarcopenia was independently associated with disability and poor physical function.
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