The Healthy Brain 9 (HB9): A New Instrument to Characterize Subjective Cognitive Decline

Abstract

Background: Subjective cognitive decline (SCD) affects 10% of older adults ≥45y with a differential expression across differential ethnoracial groups: 9.3% of non‐Hispanic Whites, 10.1% of African Americans, and 11.4% of Hispanics. SCD may be a risk factor for future mild cognitive impairment (MCI) and dementia.