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Dietary HabitsHGHYNCT02166034

Effects of School Gardens on Children's Diet, Nutritional Knowledge, Etc.

A study testing garden intervention in people with Dietary Habits, run by Cornell University at 4 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to determine whether school gardens influence children's dietary intake, nutritional knowledge, and other outcomes. Read more about this study

Who is it for?
Ages 6 to 14 years
Conditions the study is for
Dietary Habits
What is being tested?
garden intervention
Could I receive a placebo?
No, everyone receives an active treatment
How many people
3,531 participants
Where
4 sitesUnited States
Study dates
Aug 2011to Jun 2013
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 6 to 14 years
  • All sexes
  • No healthy volunteers
  • Child

Who may be able to join

  • Schools had at least 50% of enrolled children qualifying for free + reduced price meals (FRPM)
  • Schools did not already have a school garden.

Who cannot join

  • none.

Trial locations and contacts

4 sites in 1 country.

United States4 sites
  • Schools in New York State

    Ithaca, New York, 14850

  • Schools in Arkansas

    Little Rock, Arkansas, 72204

  • Schools in Iowa

    Osceola, Iowa, 50213

  • Schools in Washington State

    Tacoma, Washington, 98418

Other trials in United States

About this study

Official title: Healthy Gardens, Healthy Youth (HGHY): A People's Garden School Pilot Program

The purpose of this study is to determine whether school gardens influence children's dietary intake, nutritional knowledge, and other outcomes.

Read the detailed description

Schools in New York, Washington State, Iowa, and Arkansas were randomly assigned to receive school gardens and associated curriculum or to serve on the wait list control group that received gardens and curriculum at the end of the 2-year study. Baseline data were collected in Fall 2011. Garden interventions began in Spring 2012. Follow-up data were collected at 6, 12, 18 months following baseline data collection.

Conditions
Dietary Habits
Being tested
garden intervention
Keywords
children, fruit, vegetable, diet, school, garden
Medical subject headings
Feeding Behavior

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • garden interventionBehavioural

    The intervention includes raised bed garden kits for participating classes as well as access to garden-based curriculum.

Study groups in NCT02166034
Study groupRoleWhat they receive
garden interventionExperimentalSchools assigned to the garden intervention receive raised bed garden kits and access to a toolkit of garden-based curriculum
Receives: Behavioral: garden intervention
ControlNo interventionWait-list control (no garden intervention + lessons) until end of the study.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. change in fruit + vegetable intake at school

    Children's lunch trays are photographed before and after lunch for 3 days at each wave of data collection. Digital Food Image Analysis software computes grams of fruit and grams of vegetables consumed for each pair of lunch tray photos.

    Measured: change from baseline to follow-up at 6, 12, 18 months

Secondary outcomes (4)
  1. Garden Intervention Fidelity

    fruit + vegetables planted, harvested; methods of fruit and vegetable distribution; and garden-based lessons delivered to the class are measures at each wave of data collection from Fall 2011 to Spring 2013.

    Measured: At 3 garden intervention time points -- 6, 12, 18 months after baseline

  2. change fruit & vegetable consumption at home

    Measured: change from baseline (Fall 2011) to follow-up at 6 months, 12 months, 18 months.

  3. change in Nutritional Knowledge

    In the classroom, children complete a 7-item multiple choice questionnaire developed by the Healthy Gardens, Healthy Youth curriculum development team. The questionnaire includes items about plant science (e.g., Which part of the plant uses the sun's energy to make food? root, stem, leaf, flower) and nutrition (e.g., Which nutrient supplies our bodies with energy? fiber, carbohydrates, water, vitamins). Data represent the number of correct answers.

    Measured: change from baseline to follow-up at 6, 12, 18 months

  4. change in Science Technology Engineering Math (STEM) self efficacy

    In the classroom, children complete a 15-item questionnaire, derived from the Science Process Skills Inventory (SPSI) (Arnold \& Bourdeau, 2009) and the Iowa 4-H Science Youth Self-Assessment (Staker, 2011). Items include, for example: "I can do an experiment to answer a question" and "I can develop a plan for a good garden I want to plant" with response options "Disagree." "Not Sure." or "Agree" denoted 1, 2, or 3 respectively. The STEM self-efficacy score range is thus 15-45, with higher scores indicating that participant has stronger positive beliefs in their abilities to use STEM to solve problems.

    Measured: change from baseline (Fall 2011) to follow-up at 6, 12, 18 months.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted18 Jun 2014 (estimated)
  2. Study startAug 2011
  3. Primary completionJun 2013
  4. Study completionJun 2013

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
3,531 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02166034
Sponsor's protocol ID
CN-CGP-11-0047
Acronym
HGHY
Status last verified
May 2014
First submitted
15 May 2014
Last updated
18 Jun 2014
Results posted
No
Data monitoring committee
No

Publications

  • Wells NM, Meyers BM, Todd LE, Henderson CR Jr, Barale K, Gaolach B, Ferenz G, Aitken M, Tse CC, Pattison KO, Hendrix L, Carson JB, Taylor C, Franz NK. The carry-over effects of school gardens on fruit and vegetable availability at home: A randomized controlled trial with low-income elementary schools. Prev Med. 2018 Jul;112:152-159. doi: 10.1016/j.ypmed.2018.03.022. Epub 2018 Apr 5.

    PubMed 29627512

Questions about this trial

What is this clinical trial studying?

A study testing garden intervention in people with Dietary Habits, run by Cornell University at 4 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 18 Jun 2014. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 4 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

change in fruit + vegetable intake at school (time frame: change from baseline to follow-up at 6, 12, 18 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02166034, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 Jun 2014.

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