Table 2

Salience and depth of processing of warnings among adolescents (11–16 years), Youth Tobacco Policy Survey (YTPS) Wave 5 (2008) and Wave 6 (2011)

	Total sample				Never smokers				Experimental smokers				Regular smokers
	Percentages		Test of differences by year*		Percentages		Test of differences by year†		Percentages		Test of diff by year†		Percentages		Test of diff by year†
	2008	2011	AOR	p Value	2008	2011	AOR	p Value	2008	2011	AOR	p Value	2008	2011	AOR	p Value
% who ‘often’ or ‘very often’
Salience
Noticed warnings	51	50	0.984	0.837	46	47	1.027	0.774	54	56	1.054	0.770	77	66	0.526	0.032
Read or looked closely at warnings	22	20	0.872	0.161	19	17	0.896	0.366	24	20	0.767	0.231	43	41	0.855	0.560
Depth of processing
Think about what warnings are telling you when packs in sight	25	31	1.332	0.001	26	32	1.305	0.009	24	30	1.322	0.177	19	23	1.28	0.444
Think about what warnings are telling you when packs not in sight	9	10	1.072	0.597	10	10	1.104	0.516	8	8	0.902	0.765	10	11	1.071	0.867
Talk about warnings	5	5	0.954	0.795	5	4	0.834	0.405	5	4	1.046	0.923	7	10	1.668	0.289
Base: all respondents (number varies due to missing values)	1367–1389	1343–1361			927–950	1000–1014			298–304	225–229			132–134	115–116

*p Values are based on logistic regressions, testing differences 2011 vs 2008 after controlling for peer and family smoking, age, gender, social grade and smoking status.
†p Values are based on logistic regressions, testing differences 2011 vs 2008 after controlling for peer and family smoking, age, gender and social grade.
AOR, adjusted ORs.