Bradley M Appelhans1, Molly A Martin2, Marieli Guzman3, Tamara Olinger3, Andrew Pleasant4, Jennifer Cabe4, Lynda H Powell5. 1. Department of Preventive Medicine, Rush University Medical Center, Chicago, IL; Department of Behavioral Sciences, Rush University Medical Center, Chicago, IL. Electronic address: brad_appelhans@rush.edu. 2. Department of Pediatrics, University of Illinois at Chicago, Chicago, IL. 3. Department of Preventive Medicine, Rush University Medical Center, Chicago, IL. 4. Canyon Ranch Institute, Tucson, AZ. 5. Department of Preventive Medicine, Rush University Medical Center, Chicago, IL; Department of Behavioral Sciences, Rush University Medical Center, Chicago, IL; Department of Internal Medicine, Rush University Medical Center, Chicago, IL; Department of Pharmacology, Rush University Medical Center, Chicago, IL.
Abstract
OBJECTIVE: This report describes the development and validation of a technology-based system that integrates data on food choice, nutrition, and plate waste to generate feedback reports summarizing students' dietary intake at school meals. METHODS: Cafeteria staff used the system to document the school lunch choices of seventh-graders (n = 37) in an urban charter school for 5 months. Plate waste was assessed by research staff using a visual estimation method that was validated against directly weighed plate waste. RESULTS: Most food choices (97.1%) were correctly recorded through the system. Visual estimates of plate waste had excellent interrater reliability (r's ≥ .94) and agreement with direct measurements (ρ's ≥ .75). Plate waste assessment required approximately 10 s/tray. Fifty-four percent of parents received feedback reports consistently. CONCLUSIONS AND IMPLICATIONS: The technology-based system enabled staff to monitor dietary intake accurately at school meals. The system could potentially inform lunch menu modifications aimed at reducing plate waste.
OBJECTIVE: This report describes the development and validation of a technology-based system that integrates data on food choice, nutrition, and plate waste to generate feedback reports summarizing students' dietary intake at school meals. METHODS: Cafeteria staff used the system to document the school lunch choices of seventh-graders (n = 37) in an urban charter school for 5 months. Plate waste was assessed by research staff using a visual estimation method that was validated against directly weighed plate waste. RESULTS: Most food choices (97.1%) were correctly recorded through the system. Visual estimates of plate waste had excellent interrater reliability (r's ≥ .94) and agreement with direct measurements (ρ's ≥ .75). Plate waste assessment required approximately 10 s/tray. Fifty-four percent of parents received feedback reports consistently. CONCLUSIONS AND IMPLICATIONS: The technology-based system enabled staff to monitor dietary intake accurately at school meals. The system could potentially inform lunch menu modifications aimed at reducing plate waste.
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