TABLE 2.

Estimated Relationships Between Exposure to Antidrug Advertisements and Adolescent Drug Use in the United States: American Community Survey, 2006, and Monitoring the Future Study, 2006–2008

	Grade 8		Grade 10		Grade 12
	Adolescent Girls (n = 21 710), AOR (SE)	Adolescent Boys (n = 20 705), AOR (SE)	Adolescent Girls (n = 22 598), AOR (SE)	Adolescent Girls (n = 21 042), AOR (SE)	Adolescent Boys (n = 20 086), AOR (SE)	Adolescent Girls (n = 18 236), AOR (SE)
Lifetime marijuana usea	0.760** (0.079)	0.983 (0.104)	0.954 (0.102)	0.979 (0.074)	0.877 (0.095)	0.897 (0.090)
Past-month marijuana useb	0.672** (0.087)	1.024 (0.143)	1.025 (0.116)	0.987 (0.103)	0.832 (0.121)	0.933 (0.122)
Past-month alcohol usec	1.000 (0.090)	0.943 (0.069)	0.942 (0.085)	0.960 (0.070)	0.907 (0.102)	0.938 (0.108)

Note. AOR = adjusted odds ratio; TRP = targeted rating points. The outcome data came from the Monitoring the Future Study, 2006–2008. The advertising exposure data came from the Office of National Drug Control Policy. We estimated multiple logistic regression models for each outcome for each subgroup; each entry is from a separate model. AORs are reported for the advertising exposure variable, which was set equal to depreciated TRPs/1000, according to the past 4 months of TRPs, with each month depreciated; λ = 0.3. Models also controlled for survey year and region fixed effects, respondent age in months at time of survey, race/ethnicity dummies, parental education dummies, and market-level characteristics measured from the 2006 American Community Survey¹⁴ (population size, median household income, percentage of the population with at least a bachelor's degree, median age, and percentage of the population in rental housing). Observations were weighted with the Monitoring the Future Study student weight.

^a Outcome was an indicator variable equal to 1 if student ever used marijuana.

^b Outcome was an indicator variable equal to 1 if student used marijuana in the past month.

^c Outcome was an indicator variable equal to 1 if the student used alcohol in the past month.

**P < .01.