Early Age-Related Hearing Loss Investigation (EARHLI): A Randomized Controlled Trial to Assess the Mechanisms Linking Early Age-Related Hearing Loss and Alzheimer's Disease and Related Dementias
Early Age-Related Hearing Loss Investigation (EARHLI) is a single site study that will randomize late middle age adults to either a hearing intervention (including hearing aids) or a health education intervention. Participants will be followed for 1 year. This study will provide information on reducing cognitive decline in those at risk for Alzheimer's Disease and Alzheimer's Disease Related Dementias (AD/ADRD).
• Age 55-75 years of age
• Adult-onset hearing loss of approximately mild to moderate in severity (4-frequency 0.5, 1, 2, 4 kHz pure tone average 20 dB to 55 dB HL in better hearing ear)
• Aidable hearing loss, defined by word recognition score in quiet ≥ 60% in better hearing ear
• Amnestic mild cognitive impairment (MCI) defined by Mini-Mental State Exam (MMSE2) score \>23, Clinical Dementia Rating (CDR) global score equivalent = 0.5, and ADNI3 criteria of Logical Memory II score of ≤6 if 0-7 years of education, ≤9 if 8-15 years, and ≤11 if ≥16 years
• Availability of a study partner (informant) for the administration of the cognitive screen and the ADCS-Activities of Daily Living-Prevention Instrument (ADCS-ADL-PI)
• Community-dwelling
• Fluent in English or Spanish
• Availability of participant in area for study duration