Table 1.

Correlation matrix of the total state count and ZIP Code Business Patterns sub-classifications

	State Count	ZIP-BP Count	Supermkt Groceries	Conv Stores	Beer, Wine, Liquor Stores	Gas Stations	Full- Service Rest.	Drinking Places
State Count	1
ZIP-BP Count	0.89***	1
Supermkts/ Groceries	0.57***	0.64***	1
Convenience Stores	0.42***	0.46***	0.55***	1
Beer, Wine, Liquor Store	0.38***	0.48***	0.50***	0.30***	1
Gas Stations	0.51***	0.57***	0.37***	0.22***	0.18**	1
Full-Service Restaurant	0.81***	0.91***	0.40***	0.22***	0.31***	0.36***	1
Drinking Places	0.58***	0.60***	0.28***	0.29***	0.16*	0.25***	0.45***	1

Notes: n=266 ZIP codes and 44 schools.

^*p<0.05;

^**p<0.01;

^***p<0.001 (two-tailed tests)

The sample breakdown for the different types of establishments across the study sites is: Supermarkets/Grocery: 13.15%; Convenience Stores: 6.38%; Beer/Wine/Liquor Stores: 6.48%; Gas Stations/Convenience Stores: 13.71%; Full-Service Restaurants: 50.17%; and Drinking Places: 10.09%.