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Transport Disadvantage and Alzheimer’s Disease and Alzheimer’s Disease–Related Dementias: A Longitudinal Study of Trajectories and Impacts

Award Number: R01AG092784
ORGANIZATION: NATIONAL INSTITUTE ON AGING
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)
PERIOD OF PERFORMANCE START DATE: 09/01/2026
PERIOD OF PERFORMANCE END DATE: 06/30/2030

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Transport Disadvantage and Alzheimer’s Disease and Alzheimer’s Disease–Related Dementias: A Longitudinal Study of Trajectories and Impacts - REVISED Project Summary Cognitive decline and maintaining transportation are two linked issues for older adults, and each one affects the other. However, we don't fully understand how transport disadvantage impact cognitive health. Here transport disadvantage is defined as unmet transport needs and inadequate access to transportation due to barriers such as distance, cost, physical limitations, or social/environmental factors. This study has three aims. First, to understand how transport disadvantages change over time among older adults, identifying distinct trajectories of transport disadvantages and the determinants of these patterns. Second, to examine the longitudinal relationship between transport disadvantages and incident Alzheimer’s disease and Alzheimer’s disease–related dementias (AD/ADRD), exploring how much transport disadvantages contribute to incident AD/ADRD. The third aim is to evaluate how personal transportation choices may influence transport disadvantages and AD/ADRD risk, using various scenario analyses. We will use the National Health and Aging Trends Study (NHATS), an ongoing longitudinal, nationally representative panel study of U.S. Medicare enrollees aged 65 and older. Among the first to establish transport disadvantages as a modifiable risk for AD/ADRD, the study will provide critical insights for mitigating transport disadvantages and AD/ADRD risk.


Issue Date FY	Funding FY	Legal Entity Name	Legal Entity Address	Legal Entity City	Legal Entity State	Legal Entity Zip Code	Legal Entity COUNTY	Legal Entity COUNTRY	Assistance Listing	Award Code	Budget Year	Action Date	Action Type	Action Amount

Issue Date FY: 2026 ( Subtotal = $389,999 )
2026	2026	UNIVERSITY OF MEMPHIS	115 JOHN WILDER TOWER	MEMPHIS	TN	38152	SHELBY	USA	Aging Research	000	1	8/27/2026	NEW	$389,999
														Subtotal = $389,999

Grand Total All Awards = $389,999

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Transport Disadvantage and Alzheimer’s Disease and Alzheimer’s Disease–Related Dementias: A Longitudinal Study of Trajectories and Impacts

Award Number: R01AG092784

ORGANIZATION: NATIONAL INSTITUTE ON AGING

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)

PERIOD OF PERFORMANCE START DATE: 09/01/2026

PERIOD OF PERFORMANCE END DATE: 06/30/2030

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