Subjective versus objective cognitive assessment in an ethnically diverse cohort of oldest‐old individuals: The LifeAfter90 Study

Background The ability to measure cognition accurately in ethnically diverse populations is important. However, information about cognition in the oldest‐old (people aged 90+) comes almost exclusively from cohorts of highly educated Caucasian individuals. We studied the association between self‐rated cognition and objectively measured cognition among the first 610 participants enrolled in an ongoing multi‐ethnic oldest‐old cohort. Method...