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.

664 community-dwelling older adults aged 80 years or older were enrolled in this cross-sectional study in the urban community in Beijing, China.

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).