Table 7.

Mean difference in daily time: those who reported living within one block of a roadway with moderate to heavy traffic vs. those who did not

Age group (sample size living near roadway, sample size that do not)	Time in active transportationa (min)		Time in moderate to heavy traffic associated with active transportationa (min)		Time in moderate to heavy traffic while in a car, van, truck, or busb (min)		Time in moderate to heavy traffic while running, walking, or standing along a roadsideb (min)		Time in moderate to heavy traffic while in car, van, truck, or bus or running, walking, or standing along a roadsideb (min)
	Difference	95% CI	Difference	95% CI	Difference	95% CI	Difference	95% CI	Difference	95% CI
0–4 years (164, 166)	15.9c	− 8.2 – 40.0	20.4c,*	0.7 – 40.2	− 6.9	− 19.9 – 6.1	19.9*	3.8 – 36.0	12.9	− 7.8 – 33.6
5–18 years (1216, 714)	− 1.6	− 20.9 – 17.8	5.0	− 0.8 – 10.8	5.1	− 7.3 – 17.4	3.6	− 2.5 – 9.8	8.6	− 7.1 – 24.2
19–64 years (280, 234)	1.9	− 7.2 – 11.0	9.5*	3.6 – 15.3	5.1	− 13.9 – 24.1	8.7*	4.7 – 12.7	13.6	− 7.1 – 34.3
65+ years (490, 225)	− 1.5	− 26.8 – 23.7	8.7*	2.8 – 14.7	− 1.1	− 10.4 – 8.3	4.7	− 2.5 – 11.9	3.2	− 8.7 – 15.2

*Significant values represented in bold

^aBased on 24-h recall diary

^bBased on supplemental questionnaire

^cInterpret with caution, due to small sample size