Not provided
Not provided
Not provided
Not provided
Not provided
COVID-19 closed schools in March 2020. Data collection for all elementary schools was completed pre-pandemic. For middle and high schools, the marketing phase was halted. Results will solely reflect the salad bar intervention.
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
| Name | Class |
|---|---|
| National Institutes of Health (NIH) | NIH |
Not provided
Not provided
Not provided
Not provided
The investigators propose an efficacy study (i.e., do salad bars work under controlled conditions in naturalistic settings) to test whether introducing salad bars in elementary, middle, and high schools that have never had salad bars affects students' FV consumption and waste during lunch. A cluster randomized controlled trial will test new salad bars against controls for 6 wks, with/without an additional 4-wk marketing phase .
Not provided
Not provided
Not provided
Not provided
Not provided
| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Experimental 3 | Experimental | Introduction of a new salad bar and marketing conditions during second semester of school year |
|
| Experimental 2 | Experimental | Introduction of marketing conditions during second semester of school year |
|
| Experimental 1 | Experimental | Introduction of a new salad bar during second semester of school year |
|
| Control | No Intervention | No introduction of a new salad bar and no introduction of marketing conditions |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| New salad bar | Behavioral | New salad bar placed in school |
| |
| Measure | Description | Time Frame |
|---|---|---|
| Change in grams of fruit and vegetables consumed | The amount (grams) of fresh and canned fruits and vegetables consumed at lunch | Baseline (prior to randomization allocation of installation of salad bars), Time 2 (6 weeks after randomization), and Time 3 (10 weeks after randomization) |
| Measure | Description | Time Frame |
|---|---|---|
| Change in grams of fruit and vegetables selected | The amount (grams) of fresh and canned fruits and vegetables selected at lunch | Baseline (prior to randomization allocation of installation of salad bars), Time 2 (6 weeks after randomization), and Time 3 (10 weeks after randomization) |
| Change in percent of fruit and vegetables wasted |
Not provided
Inclusion Criteria:
Exclusion Criteria:
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Arizona State University | Phoenix | Arizona | 85004 | United States |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 30572161 | Background | Adams MA, Ohri-Vachaspati P, Richards TJ, Todd M, Bruening M. Design and rationale for evaluating salad bars and students' fruit and vegetable consumption: A cluster randomized factorial trial with objective assessments. Contemp Clin Trials. 2019 Feb;77:37-45. doi: 10.1016/j.cct.2018.12.007. Epub 2018 Dec 18. | |
| 29214812 | Result | Bruening M, Adams MA, Ohri-Vachaspati P, Hurley J. Prevalence and Implementation Practices of School Salad Bars Across Grade Levels. Am J Health Promot. 2018 Jul;32(6):1375-1382. doi: 10.1177/0890117116689159. Epub 2017 Feb 19. |
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
| ID | Term |
|---|---|
| D005247 | Feeding Behavior |
| D009765 | Obesity |
| D005518 | Food Preferences |
| D000294 | Adolescent Behavior |
| ID | Term |
|---|---|
| D001522 | Behavior, Animal |
| D001519 | Behavior |
| D050177 | Overweight |
| D044343 | Overnutrition |
Not provided
Not provided
| ID | Term |
|---|---|
| D040541 | Marketing |
| ID | Term |
|---|---|
| D003132 | Commerce |
| D013676 | Technology, Industry, and Agriculture |
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
| Marketing |
| Behavioral |
Marketing conditions (printed material, displays, verbal announcements, prompts and taste tests) |
|
The percent of fresh and canned fruits and vegetables wasted at lunch |
| Baseline (prior to randomization allocation of installation of salad bars), Time 2 (6 weeks after randomization), and Time 3 (10 weeks after randomization) |
| 40420203 | Derived | Adams MA, Todd M, McEntee ML, Yu TY, Ohri-Vachaspati P, Richards TJ, Bruening M. A cluster randomized factorial trial of school-lunch salad bars and marketing on elementary students' objectively measured fruit and vegetable consumption. Int J Behav Nutr Phys Act. 2025 May 26;22(1):58. doi: 10.1186/s12966-025-01758-z. |
| D009748 |
| Nutrition Disorders |
| D009750 | Nutritional and Metabolic Diseases |
| D001835 | Body Weight |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |