UW Medicine

Big Aging Database Resources

Database# of studies/subjectsFocusData AvailableData DetailsAvailable to Public
Adult Changes in Thought (ACT)6,206 participants (as of March 2024)Study of older adults to better understand factors that affect healthy aging and cognition over the life courseGenetics
Biomarkers
Neuro
Physiological
Medical
Social
Environmental
Specimens
Genetic, Biomarker, or Other Specimen Data
Activity Monitoring Device (Accelerometry) Data
Neuroimaging Data
Neuropathology Data
Medical Record Abstraction Data
Electronic Health Record & Utilization Data 
Historical Life Course & Social Determinants of Health Data
ACT Study Visit Data
Data Query Tool

Access upon request: Data Request Form
Dog Aging Project (DAP)52,599 canine participants (as of 2025)Rigorous scientific research designed to define, explain, and ameliorate the effects of aging through a community of volunteers and researchers committed to helping dogs and humans live longer, healthier lives — together.Demographics
Physiological
Environmental
Social
Nutrition
Medical
Health and Life Experience Survey (HLES):
Dog Demographics
Physical Activity
Environment
Behavior
Diet
Comp Diet
Meds and Preventitves
Health Status
Owner Demographics
Public: DAP GitHub public repository 

Curated data: access instructions
database of Genotypes and Phenotypes (dbGaP)3,450 individual studiesPublic repository for individual-level phenotype, exposure, genotype, and sequence data, and the associations between them.Varies by study selected:

Genetics
Phenotypes
Molecular Data
Studies
Phenotype Datasets
Variables
Analyses
Molecular Datasets
Documents
Data Query Tool

Public: dbGaP Public Files

Controlled data: Authorized Access Portal
Baltimore Longitudinal Study of Aging (BLSA)3,400+ participantsAmerica’s longest-running scientific study of human aging. Genetics, lifestyle, and disease processes affect the rate of aging between and within all individuals.Demographics
Cognitive
Physiological
Environmental
Social
Nutrition
Medical
Imaging
Cohort
Demographics
CVD
Cognition
Nutrition
Labs
Body Imaging
Physical Function
Anthropometrics
Glucose
Blood Pressure
Medications
Body Composition
Respiratory
Health History
Medical History
Nerve function
Senses
Physical Performance
Sleep
Data
Administrative
Lab Tests
Mitochondrial function
Physical Activity
Fatigue
Health Metrics
Self Rated Health
Omics
Data Exploration Tool
This repository is under review for potential modification in compliance with Administration directives.

No public access, must apply through BLSA below or Alzheimer’s Disease Data Initiative (ADDI)

Permissioned data or biospecimens: Authorized data access
National Health and Nutrition Examination Survey (NHANES)~5000 participants of all agesNHANES is the only national health survey that includes health exams, laboratory tests, and dietary interviews for participants of all ages.Genetics
Neuro
Physiological
Medical
Social
Environmental
Specimens
Serum
Plasma
Urine
National Health and Nutrition Examination Survey: 1999–2022 Survey Content Brochure: 
Questionnaire components
Postexamination follow-up questionnaire components
Examination components
Laboratory components

By Approved Proposal only:
DNA Specimens and Genetic Data 
Serum, Plasma, and Urine Specimens
Public: Limited; Data Query Tool

Authorized Access: CDC Research Data Center
University of Michigan Health and Retirement Study (HRS) ~20,000 participantsA longitudinal panel study that surveys a representative sample of approximately 20,000 people in America, supported by the National Institute on Aging (NIA U01AG009740) and the Social Security Administration.Genetics
Neuro
Physiological
Medical
Social
Environmental
Specimens
Insurance
Cognitive
Public Data:
Public Survey Data
RAND Center for the Study of Aging HRS Products
HRS Life History Data Resources
Contributed Projects

Restricted/Sensitive Data:
Cognition Data
Sensitive Biomarker and Health Data
Restricted Data
Administrative Linkages- Medicare and Social Security
Genetic Data
Biosamples
See Data Products, individual processes for Restricted/Sensitive Data