SENAS Spanish English Neuropsychological Assessment Scale LA90 LifeAfter90 Study KPNC Kaiser Permanente Northern California 1 INTRODUCTION Adults 90 years of age or older are the fastest growing segment of the U.S. population.1 As of 2020, ≈2.5 million people in the United States are 90 years of age or older, with about 20% identifying as racial or ethnic minorities.2 This population is projected to increase, reaching an estimated 9 million by 2050.1-3 Risk of dementia increases with age,...