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. Author manuscript; available in PMC: 2012 Sep 1.
Published in final edited form as: Health Place. 2011 May 17;17(5):1150–1161. doi: 10.1016/j.healthplace.2011.05.001

Table 2.

Variation in characteristics (size, environmental features) of the activity space (one standard deviation ellipse, daily path area) (n=120) a, b

Characteristics Median Quartile 1 Quartile 3 Interquartile Range
One standard deviation ellipse
 Geographic size (in mi2) 7.60 0.71 22.52 21.81
 Fast food outlet density (per mi2) 1.28 0.24 1.72 1.48
 Park land use, % 2.37 1.25 3.33 2.08
Daily path area
 Geographic size (in mi2) 28.63 10.46 49.67 39.21
 Fast food outlet density (per mi2) 1.85 1.48 2.12 0.64
 Park land use, % 2.60 2.17 3.37 1.20
a

Statistics for residential neighborhoods: geographic size (median=0.43 mi2, Q1=0.38, Q3=0.45, number of fast food outlets (median=0, minimum=0, maximum=3), and percent park land use (median=1.22, Q1=0.10, Q3=3.48)