title: Prevalence of Sarcopenia and Associated Factors in Chinese Community-Dwelling Elderly: Comparison Between Rural and Urban Areas.
abstract: OBJECTIVE
  To compare the prevalence of sarcopenia in urban and rural Chinese elderly adults and to identify the risk factors related to sarcopenia.
  
  
  METHODS
  A cross-sectional study.
  
  
  METHODS
  Urban and rural communities in western China.
  
  
  METHODS
  A total of 887 community-dwelling elderly adults aged 60 years or older.
  
  
  METHODS
  Sarcopenia was defined according to the recommended algorithm of the Asian Working Group for Sarcopenia (AWGS). Cognitive function, depression, and nutrition status were assessed using the Chinese version of the Mini-Mental Status Examination (MMSE), the Chinese version of the 30-item Geriatric Depression Scale (GDS-30), and the revised Mini Nutritional Assessment short-form (MNA-SF), respectively.
  
  
  RESULTS
  A total of 612 individuals aged 70.6 ± 6.7 years (range, 60-91 years) were included in this study. The prevalence of sarcopenia in the study population was 9.8% (women, 12.0%; men, 6.7%; P = .031). The prevalence of sarcopenia was 13.1% in rural elders and 7.0% in urban elders (P = .012). Age (odds ratio [OR] 1.22; 95% confidence interval [CI] 1.15-1.29), women (OR 1.71; 95% CI 1.20-5.65), malnutrition or at risk for malnutrition (OR 3.53; 95% CI 1.68-7.41), rural residence (OR 2.15; 95% CI 1.33-4.51), and the number of medications (OR 1.23; 95% CI 1.06-1.44) were independently associated with sarcopenia.
  
  
  CONCLUSIONS
  Rural elders are more vulnerable to sarcopenia than urban elders in a sample of western China's elderly population. More attention should focus on rural populations in future sarcopenia studies.
authors.affiliation: The Center of Gerontology and Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
authors.forename: Langli
authors.initials: L
authors.lastname: Gao
authors.affiliation: The Center of Rehabilitation, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
authors.forename: Jiaojiao
authors.initials: J
authors.lastname: Jiang
authors.affiliation: The Center of Gerontology and Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China. Electronic address: yangmier@gmail.com.
authors.forename: Ming
authors.initials: M
authors.lastname: Yang
authors.affiliation: The Center of Gerontology and Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
authors.forename: Qiukui
authors.initials: Q
authors.lastname: Hao
authors.affiliation: The Center of Gerontology and Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
authors.forename: Li
authors.initials: L
authors.lastname: Luo
authors.affiliation: The Center of Gerontology and Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
authors.forename: Birong
authors.initials: B
authors.lastname: Dong
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D002681:China / Q000453:epidemiology; D015897:Comorbidity; D003430:Cross-Sectional Studies; D005260:Female; D015577:Geriatric Assessment; D006801:Humans; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D012424:Rural Population; D055948:Sarcopenia / Q000453:epidemiology*; D014505:Urban Population
keywords: Sarcopenia; older adults; rural community; urban community