Ascertainment of MCI and Probable Dementia
In SPRINT, cognitive screening assessments were administered at baseline, 2 and 4 years of follow up, study closeout (if it was >1 year from the 4-year visit), and an extended follow-up visit between October 1, 2017, and July 30, 2018 (eFigure 1 in Cognitive assessment in SPRINT included a screening battery administered to all participants: (1) Montreal Cognitive Assessment for global cognitive function; (2) Logical Memory forms I and II subtests of the Wechsler Memory Scale for learning and memory; and (3) Digit Symbol Coding Test of the Wechsler Adult Intelligence Scale for processing speed.