Table 1.

Baseline and Follow up descriptive statistics, respondents enrolled in The National Longitudinal Study of Adolescent Health waves II (1996, 12–22 years) and III (2001, 18–28 years) and their community characteristics at each time point

	Wave II N=14,604		Wave III N=14,569
Variable	Mean	SD	Mean	SD
Individual-level Sociodemographics
Age	16.24	1.64	21.98	1.78
Female (%)	51.25	0.50	52.92	0.50
Black (%)	21.61	0.41	21.37	0.41
Hispanic (%)	16.65	0.37	16.23	0.37
Asian (%)	6.77	0.25	6.62	0.25
Parent HS (%)	29.79	0.46	29.40	0.46
Parent Some College (%)	26.99	0.44	27.02	0.44
Parent College (%)	26.64	0.44	26.87	0.44
Income, per $1,000	42.27	29.30	42.86	29.16
Individual-level outcome measure
Fast food meals per week	2.21	1.79	2.47	2.09
Community-level exposures and control measures
County	N=158		N=363
Price - soda*	1.36	0.21	1.20	0.11
Price-burger*	2.33	0.28	2.28	0.20
Price-pizza*	8.34	0.82	9.51	0.74
Price-steak*	5.89	0.97	7.22	0.99
Price-milk*	1.45	0.18	1.88	0.28
Price-fried chicken*	2.23	0.21	2.58	0.26
Consumer Price Index*	1.86	0.06	1.78	0.07
Census Tract	N=850		N=2714
Population Density†	1278.48	2082.98	1394.18	2099.00
Population <100% poverty (%)†	0.15	0.12	0.15	0.12
Population College Educated(%)†	0.23	0.13	0.22	0.16
Population White (%)†	0.73	0.29	0.68	0.29

^*Council for Community and Economic Research. Price data are county-specific, real prices, in 2006 US dollars, for a 2-L bottle of soda ("soda"), a one-quarter pound hamburger purchased at a fast food restaurant ("burger"), a 13-in cheese pizza, regular crust, purchased away from home ("pizza"), a one-half gallon of whole milk ("whole milk"), 1 lb US Department of Agriculture choice steak ("steak"), and fried chicken pieces, thigh and drumstick, purchased away from home ("fried chicken").

^†Census Tract Level (US Census)