title: Incidence, Risk Factors, and the Protective Effect of High Body Mass Index against Sarcopenia in Suburb-Dwelling Elderly Chinese Populations.
abstract: Few studies have explored the risk factors of sarcopenia in certain cohorts. The objective of this study was to examine the incidence of sarcopenia and associated factors over a 1-year period in an elderly Chinese suburban population.
  
  
  
  This study was conducted on 356 Chinese suburb-dwelling participants aged ≥60 years, for whom detailed information regarding sociodemographics, behavioral characteristics, and medical conditions had been documented. Sarcopenia was defined according to the Asian Working Group for Sarcopenia (AWGS) criteria. Sarcopenia incidence was documented after one year of follow-up, and correlated with several possible factors.
  
  
  
  At baseline, 64 (9.7%) of the initial 657 participants had sarcopenia. The prevalence of sarcopenia was 10.4% after one year. Between baseline and 1-year follow-up, 13 of the participants without sarcopenia at baseline had developed sarcopenia. After multivariate adjustments, it was found that the incidence of sarcopenia increased with age and high body mass index (BMI) is associated with less incidence of sarcopenia. Incidence was also higher among women.
  
  
  
  We found sarcopenia incidence increased with age, and women were more likely to have sarcopenia. A higher BMI is also associated with a lower incidence of sarcopenia. Maintaining a healthy weight could be beneficial in the prevention of sarcopenia.
authors.affiliation: Qi Guo, M.D., Ph.D. Department of Rehabilitation Medicine, TEDA International Cardiovascular Hospital, Cardiovascular Clinical College of Tianjin Medical University, 61 Third Avenue, TEDA, Tianjin 300457, China, Phone: 86-22-8333-6977, FAX: 86-22-8333-6977, E-mail: guoqijp@gmail.com.
authors.forename: P
authors.initials: P
authors.lastname: Han
authors.forename: J
authors.initials: J
authors.lastname: Zhao
authors.forename: Q
authors.initials: Q
authors.lastname: Guo
authors.forename: J
authors.initials: J
authors.lastname: Wang
authors.forename: W
authors.initials: W
authors.lastname: Zhang
authors.forename: S
authors.initials: S
authors.lastname: Shen
authors.forename: X
authors.initials: X
authors.lastname: Wang
authors.forename: R
authors.initials: R
authors.lastname: Dong
authors.forename: Y
authors.initials: Y
authors.lastname: Ma
authors.forename: L
authors.initials: L
authors.lastname: Kang
authors.forename: L
authors.initials: L
authors.lastname: Fu
authors.forename: L
authors.initials: L
authors.lastname: Jia
authors.forename: X
authors.initials: X
authors.lastname: Han
authors.forename: Z
authors.initials: Z
authors.lastname: He
authors.forename: Y
authors.initials: Y
authors.lastname: Bao
authors.forename: L
authors.initials: L
authors.lastname: Wang
authors.forename: K
authors.initials: K
authors.lastname: Niu
mesh_terms: D044466:Asian People; D015992:Body Mass Index; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D015994:Incidence; D057187:Independent Living; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D015995:Prevalence; D012307:Risk Factors; D055948:Sarcopenia / Q000453:epidemiology*; D012959:Socioeconomic Factors