Fruit and Vegetable Vouchers With and Without an SSB Tax
Completed · Not applicable
Conditions studied: Cardiovascular Diseases
In brief
We aim to examine whether a purchasing incentive for healthy foods has the same effect on dietary intake in a community with and a community without a purchasing penalty for unhealthy foods. We will perform a randomized non-inferiority trial in two locations, San Francisco (SF) and Los Angeles (LA) to test whether a voucher for purchasing fresh fruits and vegetables has a similar effect in LA and in SF, where the former does not but the latter does have a tax on sugar-sweetened beverages. Participants will be recruited from 4 neighborhoods (N=312) with 2 SF neighborhoods (exposed to the SSB tax) and 2 LA neighborhoods (not exposed to the SSB tax).
Key facts
- Study ID
- NCT03567967
- Run by
- Stanford University
- People needed
- 313
- Starts
- 2018-05-31
- Expected to finish
- 2019-09-09
- Last updated by the study team
- 2020-07-17
Who can join
Age: 21 and older. Sex: any. Healthy volunteers: accepted.
You may qualify if…
- Understand English sufficiently to provide informed consent;
- Provision of signed and dated informed consent form;
- Stated willingness to comply with all study procedures and availability for the duration of the study;
- Any gender, aged 21 years or older;
- Have self-reported income ≤250% of the federal poverty level;
- Have regular access to a mobile phone;
- Have a safe and secure mailing address at which to receive vouchers;
- Be a resident of the Counties of San Francisco or Los Angeles as defined by official municipal boundaries.
You may not qualify if…
- Currently participating in any other dietary or nutrition study that would impact his or her normal eating patterns;
- Currently be enrolled in and receiving EatSF, CHIVES, or Vouchers4Veggies vouchers;
- Has active diagnosis of cancer or congestive heart failure;
- Is planning to move out of San Francisco or Los Angeles in the next 12 months;
- Currently pregnant.
- Currently live with and share a food budget with a current Vouchers4Veggies, EVIDENCE, or CHIVES study participant.
Where it is running
- University of California — San Francisco, California, United States
- Stanford University — Stanford, California, United States
Full record on ClinicalTrials.gov
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