Frailty trajectories preceding dementia: an individual-level analysis of four cohort studies in the United States and United Kingdom
Frailty may represent a modifiable risk factor for dementia, but the direction of that association remains uncertain. We investigated frailty trajectories in the years preceding dementia onset using data from 23,672 participants (242,760 person-years of follow-up, 2,906 cases of incident dementia…