Table 3.

Bivariate and multivariate (Model 1) relationships of individual-level characteristics and active transportation to school (N = 3 997)

Individual-level characteristics	% Engaged in active transportation	Bivariate model	Multivariate model 1
		RR (95% CI)	RR (95% CI)
Gender
Male	67.6	1.00	1.00
Female	57.9	0.86 (0.81 - 0.91)	0.85 (0.80 - 0.90)
Grade
6	58.6	1.00	1.00
7	62.3	1.06 (0.97-1.15)	1.08 (0.99 - 1.17)
8	64.1	1.07 (0.97-1.17)	1.09 (0.99 - 1.19)
9	61.9	1.12 (0.99-1.23)	1.11 (0.99 - 1.23)
10	67.3	1.14 (1.01-1.25)	1.13 (1.00 - 1.24)
P trend		0.03	0.05
Ethnicity
Caucasian only	60.3	1.00	1.00
Caucasian and other	70.2	1.09 (0.95 - 1.21)	1.11 (0.97 - 1.23)
Aboriginal	69.2	1.08 (0.98 - 1.18)	1.03 (0.92 - 1.14)
Other	64.1	0.92 (0.84 - 1.00)	0.92 (0.84 - 1.00)
Number of siblings
0	65.5	1.00	1.00
1	60.1	0.92 (0.84 - 1.00)	0.96 (0.88 - 1.03)
2+	64.2	0.97 (0.90 - 1.05)	1.01 (0.93 - 1.08)
P trend		0.88	0.38
Adults at home
Both mother and father	59.6	1.00	1.00
One parent and one step-parent	67.5	1.11 (1.02 - 1.20)	1.08 (0.98 - 1.17)
Single parent	69.0	1.13 (1.06 - 1.19)	1.06 (0.98 - 1.14)
Other	69.1	1.13 (0.97 - 1.26)	1.08 (0.92 - 1.23)
Family SES
Very well off	57.1	1.00	1.00
Well off	62.3	1.09 (1.00 - 1.21)	1.07 (0.99 - 1.15)
Average	66.1	1.17 (1.10 - 1.25)	1.15 (1.07 - 1.23)
Not very well off	66.2	1.16 (1.04 - 1.28)	1.14 (1.00 - 1.26)
Not at all well off	59.1	1.02 (0.82 - 1.20)	0.97 (0.77 - 1.16)
P trend		0.0005	0.009
Number of cars in household
0	76.7	1.00	1.00
1	68.6	0.94 (0.82 - 1.04)	0.94 (0.82 - 1.03)
2+	59.0	0.85 (0.72 - 0.95)	0.85 (0.73 - 0.97)
P trend		<.0001	0.0001
Residential neighborhood is safe for children
Strongly agree	63.5	1.00	1.00
Agree	57.9	1.02 (0.96 - 1.08)	1.01 (0.94 - 1.07)
Neither agree nor disagree	63.6	0.99 (0.91 - 1.06)	0.96 (0.88 - 1.04)
Disagree	63.0	0.87 (0.75 - 0.99)	0.84 (0.72 - 0.96)
Strongly disagree	62.2	0.98 (0.81 - 1.14)	0.96 (0.77 - 1.12)
P trend		0.14	0.036

RR (95% CI) = relative risk (95% confidence interval).