Table 1.

Characteristics of current smokers at each survey wave by country (in %)

	Canada				Australia			Mexico
	W1	W2	W3	W4	W2	W3	W4	W1	W2	W3	W4
N=	1000	969	964	967	970	963	968	1000	956	956	948
Age (years)
18–24	13.7	12.8	11.3	12.1	7.7	7.9	7.8	20.0	20.1	20.2	20.6
25–34	22.2	22.0	22.9	22.7	22.1	23.3	24.7	30.0	29.9	30.0	32.2
35–44	22.2	21.6	21.9	20.5	22.5	23.5	23.5	20.0	20.0	19.8	19.1
45–54	20.3	20.9	21.4	22.5	24.1	22.4	22.6	15.0	14.8	15.1	15.0
55–64	21.6	22.7	22.5	22.2	23.6	22.9	21.4	15.0	15.2	14.9	13.1
Sex
Male	40.5	43.0	44.4	46.3	41.3	43.6	47.8	54.8	54.7	52.8	55.9
Female	59.5	57.0	55.6	53.7	58.7	56.4	52.2	45.2	45.3	47.2	44.1
Education
High school or less	30.1	33.7	37.4	31.3	38.7	37.0	29.9	6.1	6.6	6.5	3.3
College or some university	43.8	46.5	47.1	42.9	42.1	43.2	41.9	47.7	55.7	61.3	44.6
Completed university or higher	26.1	19.8	15.5	25.8	19.3	19.8	28.2	46.2	37.7	32.2	52.1
Income
Low	28.4	27.7	28.8	24.9	24.4	23.6	22.7	46.3	43.0	42.7	38.9
Middle	32.6	32.1	31.5	31.3	25.5	28.4	27.4	29.5	35.0	34.1	32.8
High	39.0	40.2	39.7	43.8	50.2	48.0	49.9	24.2	22.0	23.2	28.3
Smoking intensity
Non-daily	22.0	15.9	16.5	18.3	12.3	12.8	13.2	51.2	52.8	49.3	50.5
Daily, 10 cpd or less	23.7	28.8	25.1	27.8	23.1	24.3	25.4	33.7	30.3	34.3	33.1
Daily, more than 10 cpd	54.3	55.3	58.4	53.9	64.6	62.9	61.4	15.1	16.8	16.4	16.4
Quit intentions in next 6 months
Yes	47.3	43.5	41.8	43.02	40.1	39.7	41.5	40.6	47.5	46.6	46.6
No	52.7	56.5	58.2	56.98	59.9	60.3	58.5	59.4	52.5	53.4	53.4
Quit attempts in past 4 months
Yes	41.7	40.0	37.2	38.2	34.0	34.0	35.5	48.0	53.2	55.0	52.7
No	58.3	60.0	62.8	61.8	66.0	66.0	64.5	52.0	46.8	45.0	47.3

Note: country differences in sample characteristics at baseline wave were all significant (p<0.01 for quit intention and p<0.001 for others).

cpd, cigarette per day.