Overview

Topic: Aging; Cognitive Decline; Hearing Loss; Dementia Prevention
Dataset Type: Cohort; Randomized controlled trial (RCT)
Expertise Required: πŸŽ“πŸŽ“ (Intermediate)
Cost: Free (with approved data request)
Dataset Summary

The ACHIEVE Trial is a multicenter randomized controlled trial of 977 community-dwelling older adults (ages 70–84) with untreated hearing loss. The study evaluates whether a hearing intervention reduces cognitive decline and influences brain structure, mental health, and physical health outcomes.

Participants were randomized to a hearing intervention or control condition and followed longitudinally with detailed cognitive testing, health assessments, and imaging in a subset of participants. The trial provides high-quality experimental data to examine the relationship between hearing loss treatment and cognitive and functional aging outcomes.

Caveats
  • Access to individual participant data (IPD) requires submission of a formal data request, Data Use Agreement (DUA), and a strong research proposal.
  • As an RCT, the sample size is smaller than large administrative or registry datasets.
  • Generalizability may be limited to older adults with untreated hearing loss who met study eligibility criteria.
  • Use of imaging or biomarker data may require additional approvals or expertise.
Examples of Outcomes Examined
  • Cognitive decline and incident dementia
  • Brain structure and neuroimaging markers
  • Mental health outcomes
  • Physical function and mobility
  • Healthcare utilization

Back to Dataset Compendium

Topic

Aging and Long-Term Care, Geriatrics/Palliative Care, Quality and Outcomes

Resource Type

Dataset

Share