Table 2.

Descriptive statistics for 28-day activity space measures

	Cumulative 28-Day Measures						Mean Daily Measures, 28 Days
	M (SD)	Min	Q1	Med	Q3	Max	M (SD)	Min	Q1	Med	Q3	Max
Convex Hull
Area (mi2)	147.12 (146.33)	19.83	43.45	75.27	200.14	537.87	10.89 (8.11)	0.35	4.95	9.07	15.24	30.46
Supermarkets
Count	133.71 (87.45)	20	75	106	178	368	14.35 (13.23)	0.64	5.57	11.93	18.61	71.18
Density	1.29 (0.58)	0.42	0.79	1.17	1.73	2.79	1.86 (1.5)	0.25	0.97	1.46	2.23	8.15
Fast food restaurants
Count	1059.5 (681.3)	118	578	895.5	1361	2849	113.21 (109.59)	5.14	38.57	102.21	127.39	579.93
Density	10.36 (5.43)	3.41	5.93	9.17	14.37	25.97	12.32 (5.63)	2.75	6.87	12.90	15.29	22.01
Parks
Count	187.74 (176.26)	25	64	105	258	653	15.67 (11.26)	0.68	7.04	14.05	20.21	47.07
Landa	0.06 (0.02)	0.03	0.04	0.05	0.06	0.12	0.03 (0.02)	0.01	0.02	0.03	0.04	0.08
500m Route Buffer
Area (mi2)	46.25 (24.31)	13.09	28.40	38.48	66.34	97.10	6.62 (3.17)	1.22	4.40	6.73	8.88	13.33
Supermarkets
Count	64.06 (30.49)	17	42	62	83	150	10.3 (6.29)	1.54	5.21	10.20	13.18	29.96
Density	1.51 (0.57)	0.55	1.11	1.47	1.87	2.99	1.63 (0.71)	0.26	1.09	1.53	2.12	3.37
Fast food restaurants
Count	554.82 (255.68)	113	419	570	719	1097	84.01 (60.57)	12.00	37.32	73.18	107.25	276.00
Density	13.29 (6.12)	4.04	9.74	11.82	17.69	30.30	12.85 (7.17)	3.34	7.03	12.17	17.34	36.89
Parks
Count	72.47 (36.29)	17	44	62.5	103	154	11.37 (5.84)	1.07	7.00	11.54	15.32	25.64
Landa	0.06 (0.02)	0.03	0.04	0.05	0.06	0.10	0.04 (0.03)	0.01	0.03	0.04	0.05	0.18
Kernel Density
Supermarkets	0.80 (1.03)	0.01	0.09	0.33	1.03	3.93	0.80 (1.03)	0.01	0.09	0.33	1.02	3.93
Fast food restaurants	5.10 (3.43)	0.51	2.00	4.83	7.71	14.14	5.09 (3.42)	0.51	2.00	4.81	7.71	14.14
Parks	24.48 (30.32)	<0.01	8.38	19.19	27.61	163.23	24.48 (30.32)	0.00	8.35	19.19	27.59	163.23

M = mean SD = standard deviation Min = minimum Q = quartile Med = median Max = maximum mi = miles

^aPark land measures for convex hull and 500m route buffer are the proportion of the activity space area that is park land.