Table 6.

Differences in Food Consumption and Waste between Intervention and Control Groups at Pre-Intervention, Post-Intervention, and Five Month Follow-Up.

	Pre-Intervention			Post-Intervention			Five Month Follow-Up
	Intervention Mean	Control Mean	p	Intervention Mean	Control Mean	p	Intervention Mean	Control Mean	p
Food Consumption (% consumed)
Vegetables	47.1%	71.8%	0.006	69.4%	68.1%	0.848	63.8%	64.8%	0.905
Fruit	44.0%	57.9%	0.009	51.1%	56.3%	0.365	52.5%	56.4%	0.454
Entrée *	79.1%	83.5%	0.207	87.7%	86.8%	0.821	83.1%	88.1%	0.143
Milk	64.9%	71.0%	0.265	61.0%	62.4%	0.815	61.0%	60.3%	0.891
Food Waste (grams wasted)
Hot Vegetable	26.4	6.1	0.015	15.4	19.2	0.384	9.5	9.8	0.965
Salad Bar Vegetable	26.6	19.0	0.466	15.1	18.5	0.756	24.2	50.1	0.029
Whole Fruit	79.9	68.9	0.241	61.2	52.4	0.384	62.0	67.1	0.577
Salad Bar Fruit	51.6	55.7	0.737	49.1	69.9	0.110	46.1	70.8	0.036
Entrée *	38.8	28.4	0.088	19.6	20.6	0.876	33.8	25.0	0.142
A La Carte	0.8	0.2	0.648	2.2	0.2	0.091	0.0	0.1	0.918
Milk †	2.9	2.3	0.219	3.3	3.1	0.782	3.2	3.2	0.940

Note. Estimated marginal means (controlling for gender, school, and entrée consumption) are displayed. The p-values presented are for differences between conditions (intervention vs. control) on food consumption and waste outcomes at each time point. The mean difference is significant at α = 0.05 for H0: The population mean difference is zero. Consumption means for vegetables and fruit include vegetables and fruit from the salad bar. Hot vegetable, salad bar vegetable, whole fruit, and salad bar fruit food waste outcomes are mutually exclusive. Consumption (n = 76–250) and waste (n = 52–245) depending upon time point and reimbursable meal component. * Entrée analyses did not control for entrée consumption. Entrées include combined protein and grain meal components. † Milk waste is displayed in fluid ounces.