CompletedNot Applicable

Dietary Analyses in the Nurses' Health Study, Nurses' Health Study II, and Health Professionals Follow-Up Study

289,900 participantsStarted 1980-08

Plain-language summary

To determine the relationships of a variety of nutrients, foods, and dietary patterns with the subsequent risk of developing type 2 diabetes, cardiovascular disease, and mortality in US men and women.

Who can participate

Age range

21 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Returned baseline food frequency questionnaires (FFQs). Exclusion Criteria: * Participants who had died or reported a diagnosis of diabetes (including type 1 diabetes, type 2 diabetes, and gestational diabetes for women), cardiovascular disease (CVD) or cancer at and before the baseline for the dietary analyses. * Participants who left more than 70 of the 131 food items blank on the baseline FFQ, reported unusual total energy intake levels (\<3,347 or \>17,573 kJ/day for men, and \<2,092 or \>14,644 kJ/day for women), or had missing baseline dietary information. * Participants who only completed the baseline questionnaire.

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Type 2 diabetes

Timeframe: Since 1976, with active follow-up

Cardiovascular disease

Timeframe: Since 1976, with active follow-up

Mortality

Timeframe: Since 1976, with active follow-up

Trial details

NCT IDNCT03366532

SponsorHarvard School of Public Health (HSPH)

Sponsor typeOTHER

Study typeOBSERVATIONAL

Primary completion2012-08

View on ClinicalTrials.gov More Type2 Diabetes trials

Who can participate

Age range

21 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.