Table 3.

Descriptive statistics for 2007–8SY.

	K to fourth grade	Ninth to twelfth grade
Restaurants along route
1	0.123	0.160
	(0.329)	(0.366)
2–4	0.087	0.134
	(0.281)	(0.341)
5 or more	0.040	0.056
	(0.197)	(0.229)
Restaurants within 0.5 mile of school
1	0.204	0.212
	(0.403)	(0.409)
2–4	0.181	0.167
	(0.385)	(0.373)
5 or more	0.071	0.064
	(0.257)	(0.246)
Restaurants within 0.5 mile of residence
1	0.124	0.106
	(0.329)	(0.308)
2–4	0.106	0.080
	(0.308)	(0.271)
5 or more	0.041	0.023
	(0.198)	(0.150)
ΔBMI z-score	0.096	−0.140
	(0.710)	(0.528)
Lagged BMI	0.618	0.763
	(1.033)	(1.004)
Route distance	2.674	3.741
	(3.086)	(4.250)
Black	0.178	0.205
	(0.382)	(0.404)
Hispanic	0.075	0.017
	(0.263)	(0.128)
Female	1.492	1.480
	(0.500)	(0.500)
Free lunch	0.340	0.256
	(0.474)	(0.436)
Reduced lunch	0.103	0.077
	(0.305)	(0.266)
Urban	0.574	0.397
	(0.495)	(0.489)
Median household income	43.439	38.188
	(17.803)	(13.528)

Notes: The 2007–8SY was the last time that twelfth grade students were measured for height and weight as part of Arkansas's statewide BMI data collection program. The change in BMI z-score is calculated based on the BMI z-score during the 2003–4SY for children in fourth grade. The change in BMI z-score is calculated based on the BMI z-score during the 2004–5SY for children in twelfth grade. Summary statistics for K–fourth grade are calculated over 2,580–2,622 observations. Summary statistics for ninth–twelfth grade are calculated over 4,237–4,133 observations. Race/ethnicity are most likely variables to be missing.