Massive study digs into Diet-Disease link
NCT ID NCT04750915
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at information already collected from over 566,000 AARP members aged 50 to 71. Researchers want to learn how diet and lifestyle choices are linked to cancer, chronic diseases, and death. No new participants are being recruited, and no treatments are being tested.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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566,398 people
The number who actually took part.
- Started
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Feb 2021
- Expected to finish
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Dec 2050
An estimate. End dates often move.
- Lead sponsor
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A government research agency
The lead sponsor is the US National Institutes of Health.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Members of the AARP (formally the American Association of Retired Persons), aged 50-71 years, and who resided in one of six states (California, Florida, Pennsylvania, New Jersey, North Carolina, and Louisiana) or in two metropolitan areas (Atlanta, Georgia and Detroit, Michigan) in 1995-1996.
- Ages
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50 to 71 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
* INCLUSION CRITERIA: * AARP members * aged 50 to 71 years * resided in one of six states (California, Florida, Pennsylvania, New Jersey, North Carolina, and Louisiana) or in two metropolitan areas (Atlanta, Georgia and Detroit, Michigan) in 1995-1996
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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National Cancer Institute (NCI)
Bethesda, Maryland, 20892, United States
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