Joint trajectories of online and offline social activity, cognitive decline, and frailty progression among middle-aged and older adults in China
To identify joint trajectories of online and offline social activity and examine their associations with cognitive decline and frailty progression among middle-aged and older adults in China. Data from 14,340 adults aged ≥45 years in CHARLS (2011–2018) were analyzed; outcome-specific samples included 10,323...