Maria Lídia de Abreu Silva, Stella Regina Taquette, Evandro Silva Freire Coutinho
Senses of body image in adolescents in elementary school
Revista de saude publica
weighing individuals plate waste provides reliable estimates food intake physically weighing individual food components nearest gram meal weighing aggregate schoollevel food waste may inexpensive less timeconsuming alternative however determined whether aggregate plate waste accurate measure individually weighed plate waste pilot study aimed evaluate accuracy aggregate plate waste quantifying food waste school cafeteria setting comparison individually weighed plate waste pilot validation study aggregate plate waste compared individually weighed plate waste school cafeteria setting study took place urban lowincome school district massachusetts spring 2014 four elementary schools identical cafeterias meals participated study approximately 1700 students participated study individually weighed plate waste percent discarded calculated dividing weight discarded item average weight food item served percent consumed calculated residual aggregatelevel measurements waste separated component entre vegetable fruit milk weight discarded calculated based weight cumulative amount remaining average weight food item served percent consumed calculated residual intraclass correlation coefficients iccs calculated assess agreement aggregate plate waste individuallevel plate waste values agreement excellent entres icc090 vegetables icc078 poor milk icc022 fruits icc023 overall agreement four components combined excellent icc075 results suggest aggregate plate waste may provide reasonable estimate individually weighed plate waste additional research warranted