Table 1. Purchase Incidence of Selected Lunch Foods.

	Control Group		Treatment Group
	Pre-NRC	Post-NRC	Pre-NRC	Post-NRC
	n = 1417*	n = 1398*	n = 35*	n = 35*
Variables	t = 32295	t = 25803	t = 789	t = 603
Grade(K-12)	5.409	5.340	5.260	5.313
	(3.534)	(3.498)	(3.261)	(3.216)
Cookies	0.115	0.107	0.143	0.065
	(0.416)	(0.421)	(0.429)	(0.272)
Ice Cream	0.090	0.095	0.076	0.090
	(0.290)	(0.298)	(0.270)	(0.297)
Chips	0.103	0.079	0.089	0.038
	(0.352)	(0.309)	(0.296)	(0.210)
Fruit	.	1.009	.	1.098
	.	(0.720)	.	(0.808)
Starch	.	0.115	.	0.129
	.	(0.321)	.	(0.346)
White Milk	.	0.091	.	0.116
	.	(0.288)	.	(0.321)
Flavored Milk	.	0.857	.	0.849
	.	0.353	.	0.358

SD in parentheses, n = number of participants, t = number of transactions. *Chips only sold in grades 7-12. For chips--Control Pre-NRC n = 590/t = 12719, Control Post-NRC n = 578/t = 9970, Treatment Pre-NRC n = 15/t = 316, and Treatment Post-NRC n = 15/t = 265.