Natalie Masis1, Jennifer McCaffrey2, Susan L Johnson3, Karen Chapman-Novakofski4. 1. Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, IL. Electronic address: masis2@illinois.edu. 2. Office of Extension and Outreach, University of Illinois Extension, Urbana, IL. 3. Children's Eating Laboratory, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, CO. 4. Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, IL.
Abstract
OBJECTIVE: To design a replicable training protocol for visual estimation of fruit and vegetable (FV) intake of kindergarten through second-grade students through digital photography of lunch trays that results in reliable data for FV served and consumed. METHODS: Protocol development through literature and researcher input was followed by 3 laboratory-based trainings of 3 trainees. Lunchroom data collection sessions were done at 2 elementary schools for kindergarten through second-graders. Intraclass correlation coefficients (ICCs) were used. RESULTS: By training 3, ICC was substantial for amount of FV served and consumed (0.86 and 0.95, respectively; P < .05). The ICC was moderate for percentage of fruits consumed (0.67; P = .06). In-school estimates for ICCs were all significant for amounts served at school 1 and percentage of FV consumed at both schools. CONCLUSIONS AND IMPLICATIONS: The protocol resulted in reliable estimation of combined FV served and consumed using digital photography. The ability to estimate FV intake accurately will benefit intervention development and evaluation.
OBJECTIVE: To design a replicable training protocol for visual estimation of fruit and vegetable (FV) intake of kindergarten through second-grade students through digital photography of lunch trays that results in reliable data for FV served and consumed. METHODS: Protocol development through literature and researcher input was followed by 3 laboratory-based trainings of 3 trainees. Lunchroom data collection sessions were done at 2 elementary schools for kindergarten through second-graders. Intraclass correlation coefficients (ICCs) were used. RESULTS: By training 3, ICC was substantial for amount of FV served and consumed (0.86 and 0.95, respectively; P < .05). The ICC was moderate for percentage of fruits consumed (0.67; P = .06). In-school estimates for ICCs were all significant for amounts served at school 1 and percentage of FV consumed at both schools. CONCLUSIONS AND IMPLICATIONS: The protocol resulted in reliable estimation of combined FV served and consumed using digital photography. The ability to estimate FV intake accurately will benefit intervention development and evaluation.
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