Table 3.

Relationships between characteristics of the activity space (one standard deviation ellipse, daily path area) and individual demographics (n=120)

	Geographic size				Fast food outlet density				Supermarket availability^a				Park land use

	One standard deviation ellipse		Daily path area		One standard deviation ellipse		Daily path area		One standard deviation ellipse		Daily path area		One standard deviation ellipse		Daily path area

	Coef.	S.E.	Coef.	S.E.	Coef.	S.E.	Coef.	S.E.	O.R.	C.I.	O.R.	C.I.	Coef.	S.E.	Coef.	S.E.

Intercept	1.67		2.90		0.54				0.38		1.39		1.26		2.91
Age	<−0.01	0.01	−0.01	0.01	<−0.01	0.01	<−0.01	0.01	0.99	(0.96, 1.03)	0.97	(0.93, 1.01)	−0.01	<0.01	−0.01	0.01
Female	−0.12	0.28	−0.19	0.20	0.26	0.13	0.26	0.13	0.55	(0.20, 1.57)	1.35	(0.39, 4.64)	−0.03	0.13	−0.52	0.32
Race/ethnicity (Ref.: African American)
Latino	−0.68	0.41	−0.23	0.29	0.05	0.20	0.06	0.15	0.26	(0.05, 1.34)	4.37	(0.73, 26.30)	0.06	0.19	0.69	0.47
White/Other	−0.31	0.39	−0.17	0.27	<−0.01	0.19	0.03	0.15	0.76	(0.18, 3.13)	1.23	(0.27, 5.56)	−0.06	0.18	0.64	0.44
Education (Ref.: <High school degree)
High school degree	0.11	0.35	0.24	0.25	−0.05	0.17	−0.05	0.17	0.72	(0.19, 2.74)	1.26	(0.28, 5.61)	−0.09	0.16	−0.24	0.40
>High school degree	0.08	0.29	0.14	0.20	−0.01	0.14	<0.01	0.14	0.72	(0.23, 2.21)	1.16	(0.35, 3.83)	−0.13	0.13	0.31	0.33
Currently employed	0.67	0.27^*	0.36	0.19	0.09	0.13	0.09	0.13	3.02	(1.12, 8.18) ^*	3.90	(0.93, 16.42)	0.09	0.13	−0.31	0.31
Annual household income^b (Ref.: <$10,000)
$10,000–$25,000	−0.09	0.30	−0.11	0.21	0.04	0.15	0.07	0.14	0.70	(0.22, 2.22)	0.50	(0.13, 1.96)	0.05	0.14	0.54	0.34
>$25,000	0.05	0.34	−0.05	0.24	−0.06	0.17	−0.06	0.17	0.99	(0.27, 3.62)	0.58	(0.12, 2.87)	−0.05	0.16	0.47	0.39
Owns automobile	1.37	0.27 ^***	0.99	0.19^***	0.13	0.13	0.11	0.13	4.99	(1.62, 15.39) ^**	7.50	(2.27, 24.84) ^**	0.24	0.12	−0.79	0.30^*
Area of city (Ref: Southwest Detroit)
Eastside Detroit	−0.63	0.39	−0.19	0.27	−0.11	0.19	0.09	0.14	1.82	(0.45, 7.37)	2.28	(0.47, 11.14)	−0.01	0.18	1.31	0.44^*
Northwest Detroit	−0.38	0.39	−0.09	0.26	0.13	0.18	0.28	0.14	1.64	(0.44, 6.20)	6.73	(1.18, 38.45) ^*	0.37	0.17^*	1.94	0.42^**
Adjusted R²	0.25		0.24		−0.03		0.06		--		--		0.04		0.18

Coef. = coefficient S.E. = standard error O.R. = odds ratio C.I. = confidence interval Ref. = reference category

p<0.05

^**

p<0.01

^***

p<0.001

Dichotomous measure: Presence or absence of a supermarket in the activity space

A dummy variable was included representing those with missing income data.