Table 1.

Participant demographic characteristics and study variables

	N	%	M	SD	Range
Youth (N = 100)
Age (<18 years)	38	38.0
Gender (Female)	60	60.0
Race/ethnicity (non-Latinx white)	37	37.0
Subjective socioeconomic status1			3.8	1.4	1–7
Past month any tobacco use	34	37.4
Daily observations (N =1,060)
Tobacco and cannabis use
No use of tobacco or cannabis	727	68.6
Tobacco use only	71	6.7
Cannabis use only	70	6.6
Tobacco and cannabis co-use	192	18.1
Number of outlets within 50m of activity space polylines with tobacco marketing			1.5	2.1	0–10.9
Number of minutes within 50m of outlets with tobacco marketing within activity space			3.9	11.4	0–206.2
Perceived exposure to tobacco marketing			0.6	1.0	0–4
Proportion of time walking/biking/skating within activity spaces			0.3	0.3	0–1
Frequency of traveling with parents/guardians			0.9	1.2	0–4
Frequency of traveling with friends			1.3	1.3	0–4

¹7-point scale from 1 (“well below average”) to 7 (“well above average”)