Tobacco Use in Canada
Patterns and Trends - 2015 Edition

end material: INDEX OF STATISTICAL TESTS

Index of Statistical Tests

W Wald test used to compute the p-value (binary variables)
F F test used to compute the p-value (continuous variables)
R Regression of the log of the outcome variable on time

1. Difference in overall smoking prevalence between 2012 and 2013: p=0.07W
2. Difference in daily smoking prevalence between 2012 and 2013: p=0.18W
3. Difference in non-daily smoking prevalence between 2012 and 2013: p=0.32W
4. Overall effect of time (1999-2013) on smoking prevalence: p<0.0001F
5. Overall annual rate of decline in prevalence, 1999-2013=3.3%; relationship of log prevalence and time: p<0.0001R
6. Difference in overall smoking prevalence between males and females in 2013: p=0.02W
7. Difference in daily smoking prevalence between males and females in 2013: p=0.16W
8. Difference in non-daily smoking prevalence between males and females in 2013: p=0.04W
9. Difference in current smoking prevalence among males between 2012 and 2013: p=0.07W
10. Difference in current smoking prevalence among females between 2012 and 2013: p=0.51W
11. Difference in current smoking prevalence between age groups in 2013: p<0.0001W
12. Difference in consumption between 2012 and 2013: p<0.05W
13. Overall effect of time (1999-2013) on consumption: p<0.0001F
14. Overall annual rate of decline in consumption, 1999-2013=1.3%; relationship of log CPD and time: p<0.0001R
15. Difference in consumption between males and females in 2013: p=0.0001F
16. Difference in consumption among males between 2012 and 2013: p=0.04F
17. Difference in consumption among females between 2012 and 2013: p=0.77F
18. Difference in consumption between age groups in 2013: p<0.0001F
19. Difference in self-rated health (excellent/very good vs. other) by smoking status in 2013: p<0.0001W
20. Difference in (excellent/very good) self-rated health by smoking status, age 15-19, in 2013: p<0.0001F
21. Difference in (excellent/very good) self-rated health by smoking status, age 20-24, in 2013: p<0.0001W
22. Difference in (excellent/very good) self-rated health by smoking status, age 25-34, in 2013: p=0.01W
23. Difference in (excellent/very good) self-rated health by smoking status, age 35-44, in 2013: p=0.005W
24. Difference in (excellent/very good) self-rated health by smoking status, age 45+, in 2013: p<0.0001W
25. Difference in self-rated mental health (excellent/very good vs. other) by smoking status in 2013: p<0.0001W
26. Difference in (excellent/very good) self-rated mental health by smoking status, age 15-19, in 2013: p<0.0001W
27. Difference in (excellent/very good) self-rated mental health by smoking status, age 20-24, in 2013: p=0.006W (0.002 if 3 age groups)
28. Difference in (excellent/very good) self-rated mental health by smoking status, age 25-34, in 2013: p=0.25W (0.002 if 3 age groups)
29. Difference in (excellent/very good) self-rated mental health by smoking status, age 35-44, in 2013: p=0.46W (0.03 if 3 age groups)
30. Difference in (excellent/very good) self-rated mental health by smoking status, age 45+, in 2013: p<0.0001W
31. Difference in smoking prevalence between provinces in 2013: p<0.0001W
32. Difference in consumption between provinces in 2013: p=0.28F
33. Difference in cigar use between males and females in 2013: p<0.0001W
34. Difference in cigarillo use between males and females in 2013: p<0.0001W35-40
35. Difference in pipe use between males and females in 2013: p=0.02W
36. NOTE: Difference in chewing tobacco/snuff use between males and females in 2013 was not calculated due to low number of female users
37. Difference in waterpipe use between males and females in 2013: p=0.84W
38. Difference in cigarillo use between (4) age groups in 2013: p<0.0001W
39. Difference in cigar use between (3) age groups in 2013: p=0.002W
40. Difference in pipe use between (3) age groups in 2013: p=0.006W
41. Difference in chewing tobacco/snuff use between (2) age groups in 2013: p=0.02W
42. Difference in waterpipe use between (2) age groups in 2013: p<0.0001W
43. Difference in cigar/cigarillo use between provinces in 2013: p=0.001W
44. Difference in any SHS exposure in past month between males and females in 2013: p<0.0001W
45. Difference in any SHS exposure in past month between age groups in 2013: p<0.0001W
46. Difference in any SHS exposure in past month by smoking status in 2013: p<0.0001W
47. Difference in quitter percentage between males and females in 2013: p=0.62W
48. Difference in ever smoking between males and females in 2013: p<0.0001W
49. Difference in current smoking between males and females in 2013: p=0.02W
50. Difference in quitter percentage between age groups in 2013: p<0.0001W
51. Difference in 6-month quit intentions between 2012 and 2013: p=0.64W
52. Difference in 30-day quit intentions between 2012 and 2013: p=0.34W
53. Difference in 6-month quit intentions between males and females in 2013: p=0.006W
54. Difference in 30-day quit intentions between males and females in 2013: p=0.009W
55. Difference in 6-month quit intentions between age groups in 2013: p=0.17W
56. Difference in 30-day quit intentions between age groups in 2013: p=0.86W
57. Difference in having made a quit attempt in the past year between 2012 and 2013: p=0.44W
58. Difference in having made a quit attempt in the past year between males and females in 2013: p=0.0003W
59. Difference in having made a quit attempt in the past year between age groups in 2013: p=0.008W
60. Difference in quit success (among past-year attempters) between 2012 and 2013: p=0.45W
61. Difference in quit success (among past-year attempters) between males and females in 2013: p=0.84W
62. Difference in quit success (among past-year attempters) between age groups in 2013: p=0.29W
63. Difference in citing health as the main reason for quitting between males and females in 2013: p=0.09W
64. Difference in citing health as the main reason for quitting between age groups in 2013: p=0.34W
65. Difference in ever trying a cigarette between males and females in 2012-13, grades 6-9: p=0.0002W
66. Difference in ever trying a cigarette between 2010-11 and 2012-13, grades 6-9: p=0.11W
67. Difference in ever trying a cigarette between provinces in 2012-13, grades 6-9: p<0.0001W
68. Difference in ever smoking a whole cigarette between 2012 and 2013, age 15-19: p=0.008W
69. Difference in ever smoking a whole cigarette among females between 2012 and 2013, age 15-19: p<0.0001W
70. Difference in ever smoking a whole cigarette between males and females in 2013, age 15-19: p<0.0001W
71. Difference in susceptibility between 2010-11 and 2012-13, grades 6-9: p=0.17W
72. Difference in susceptibility between males and females in 2012-13, grades 6-9: p=0.95W
73. Difference in susceptibility between provinces in 2012-13, grades 6-9: p=0.002W
74. Difference in smoking prevalence between 2010-11 and 2012-13, grades 6-9: p=0.48W
75. Difference in daily smoking prevalence between 2010-11 and 2012-13, grades 6-9: p=0.76W
76. Difference in non-daily smoking prevalence between 2010-11 and 2012-13, grades 6-9: p=0.40W
77. Difference in smoking prevalence between 2012 and 2013, age 15-19: p=0.89W
78. Difference in daily smoking prevalence between 2012 and 2013, age 15-19: p=0.12W
79. Difference in non-daily smoking prevalence between 2012 and 2013, age 15-19: p=0.09W
80. Difference in smoking prevalence between males and females in 2012-13, grades 6-9: p=0.26W
81. Difference in smoking prevalence between males and females in 2013, age 15-19: p=0.003W
82. Difference in smoking prevalence between provinces in 2012-13, grades 6-9: p<0.0001W
83. Difference in smoking prevalence between provinces in 2013, age 15-19: p=0.53W
84. Difference in consumption between 2010-11 and 2012-13, grades 7-9: p=0.36F
85. Difference in consumption between 2012 and 2013, age 15-19: p=0.17F
86. Difference in consumption between males and females in 2012-13, grades 7-9: p=0.20F
87. Difference in consumption between males and females in 2013, age 15-19: p=0.44F
88. Difference in cigar/cigarillo use between 2012 and 2013, age 15-19: p=0.37W
89. Difference in chewing tobacco/snuff use between 2012 and 2013, age 15-19: p=0.53W
90. Difference in cigar/cigarillo use between 2010-11 and 2012-13, grades 6-9: p=0.24W
91. Difference in pipe use between 2010-11 and 2012-13, grades 6-9: p=0.36W
92. Difference in smokeless tobacco use between 2010-11 and 2012-13, grades 6-9: p=0.87W
93. Difference in cigar use between males and females in 2013, age 15-19: p<0.0001W
94. Difference in cigarillo use between males and females in 2013, age 15-19: p<0.0001W
95. Difference in chewing tobacco/snuff use between males and females in 2013, age 15-19: p<0.0001W
96. Difference in waterpipe use between males and females in 2013, age 15-19: p=0.0002W
97. Difference in cigar/cigarillo use between males and females in 2012-13, grades 6-9: p<0.0001W
98. Difference in pipe use between males and females in 2012-13, grades 6-9: p<0.0001W
99. Difference in smokeless tobacco use between males and females in 2012-13, grades 6-9: p<0.0001W
100. Difference in waterpipe use between males and females in 2012-13, grades 6-9: p=0.005W
101. Difference in cigar/cigarillo use between provinces in 2012-13, grades 6-9: p<0.0001W
102. Difference in pipe use between provinces in 2012-13, grades 6-9: p<0.0001W
103. Difference in smokeless tobacco use between provinces in 2012-13, grades 6-9: p<0.0001W
104. Difference in waterpipe use between provinces in 2012-13, grades 6-9: p<0.0001W
105. Difference in cigarillo use between provinces in 2013, age 15-19: p<0.0001W
106. Difference in waterpipe use between provinces in 2013, age 15-19: p<0.0001W
107. Difference in chewing tobacco/snuff use between provinces in 2013, age 15-19: p=0.004W
108. Difference in cigar use between provinces in 2013, age 15-19: p=0.18W
109. Difference in ever having made a quit attempt between 2010-11 and 2012-13, grade 6-9 smokers: p=0.95W
110. Difference in having made a quit attempt in the past 12 months between 2012 and 2013, smokers age 15-19: p=0.33W