Table 3.

Unadjusted Odds Ratios Showing Changes in the Probability of Youth Exposure to Pro-Tobacco Messages Over Time, by Gender, Grade Level, Race, and Smoking Status, National Youth Tobacco Surveys, 2000–2004^†‡

	TV or Movies		Internet		Newspaper or Magazines		Convenience Store, Supermarket, or Gas Station
	Odds Ratio	p	Odds Ratio	p	Odds Ratio	p	Odds Ratio	p
Overall	0.82	0.000	1.15	0.000	0.86	0.000	0.93	0.000
Gender
Male	0.84	0.000	1.14	0.000	0.85	0.000	0.93	0.000
Female	0.79	0.000	1.16	0.000	0.86	0.000	0.92	0.000
Grade level
6–8	0.77	0.000	1.07	0.000	0.83	0.000	0.90	0.000
9–12	0.87	0.000	1.22	0.000	0.87	0.000	0.96	0.037
Race§
White	0.81	0.000	1.16	0.000	0.84	0.000	0.91	0.000
African-American	0.84	0.000	1.11	0.000	0.93	0.000	0.99	0.744
Hispanic	0.82	0.000	1.15	0.000	0.90	0.000	0.95	0.047
Smoking status
Current smokers	0.92	0.000	1.21	0.000	0.91	0.000	1.02	0.412
Former smokers	0.84	0.000	1.20	0.000	0.88	0.000	0.94	0.002
Never—Open	0.81	0.000	1.14	0.000	0.86	0.000	0.94	0.022
Never—Closed	0.79	0.000	1.11	0.000	0.83	0.000	0.91	0.000

^†Based on three cross-sectional National Youth Tobacco Surveys conducted in 2000, 2002, and 2004. Time trend was modeled as a continuous covariate. Odds ratios measure the change in the logit of the probability of self-reported exposure from 2000 to 2002 and from 2002 to 2004.

^‡Separate logistic regressions were conducted overall and by each subgroup domain.

^§Only youth classified as non-Hispanic white, non-Hispanic African-American, Hispanic, and Asian were included in the analyses.

^*Statistically significant at p < 0.0001.