Fig. 2From: Sustainable and acceptable school meals through optimization analysis: an intervention studyScatterplots based on ITS analysis displaying plate waste per pupil and consumption per pupil in School 2 as an example. Panel a represents the daily amount of plate waste per pupil during the baseline period (measurement day 0–20, graphs to the left), and the intervention period (measurement day 21–40, graphs to the right); Panel b represents the daily consumption per pupil during the baseline period (measurement day 0–20, graphs to the left), and the intervention period (measurement day 21–40, graphs to the right); Vertical line represents the first day of serving the new menu; P ≥ 0.05 for parameter estimates (β1 and β2) from the ITS analysisBack to article page