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Table 2 Sample distribution by demographic variables 1 for each wave

From: Impact of reduced ignition propensity cigarette regulation on consumer smoking behavior and quit intentions: evidence from 6 waves (2004–11) of the ITC Four Country Survey

 

Wave 3

Wave4

Wave 5

Wave 6

Wave 7

Wave 8

 

N = 6423

N = 5874

N = 5815

N = 5650

N = 4694

N = 3530

Sex

      

 Female

50.6

50.7

51.1

50.7

50.7

51.1

 Male

49.4

49.3

48.9

49.3

49.3

48.9

Country

      

 US

28.5

28.3

28.2

27.5

27.7

30.3

 Canada

25.9

25.8

25.9

26.7

27.6

29.5

 Australia

24.5

24.7

25.7

26.2

23.8

24.4

 UK

21.1

21.1

20.2

19.5

20.9

15.8

Age

      

 18-25

10.5

10.7

11.5

12.9

12.0

12.4

 26-40

29.6

28.8

29.4

28.1

27.3

25.2

 41-54

36.8

37.3

36.9

37.9

39.6

41.2

 55+

23.1

23.2

22.1

21.1

21.1

21.2

Race2

      

 White

87.6

88.1

87.9

88.0

88.9

89.6

 Non-White

12.4

11.9

12.1

12.0

11.1

10.4

% RIP Standards

1.5

27.9

29.2

33.3

40.2

83.3

  1. Note: 1, distribution based on the dependent variable do your cigarettes self-extinguish. Numbers shift slightly with other dependent variables; 2, n is slightly less because some respondents did not provide race data.