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Health Concerns

Substance Use by Canadian Youth - A National Survey of Canadians' Use of Alcohol and Other Drugs - Canadian Addiction Survey (CAS)

Chapter 7: Driving and Substance Use (con't)

Table 7.1: Proportion who were passenger/driver by age, Canada, 2004

Passenger
(asked of all panel)
Youth
15-24 years
%
[95% CI]
N = 694
Adults
25+
%
[95% CI]
N = 3,926
Total population
15+
%
[95% CI]
N = 4,620
Passenger with someone who had been drinking 32.5**
[26.6-39.1]
222
14.9
[12.9-17.2]
543
17.8
[15.8-20.0]
777
Passenger with someone who had used cannabis/hash 39.6**
[33.2-46.3]
234
7.6
[6.2-9.4]
279
12.9
[11.2-14.9]
517
Driver
(asked of respondents in panel who had used alcohol past 12 months)
Youth
15-24 years
%
[95% CI]
N = 401
Adults
25+
%
[95% CI]
N = 2,647
Total Population
15+
%
[95% CI]
N = 3,048
Driven after using alcohol 20.9*
[14.8-28.7]
85
13.5
[11.3-16.2]
330
14.5
[12.3-16.9]
418
Driver (asked of respondents in panel who had used cannabis past 12 months) N = 160 N = 338 N = 498
Driven after using cannabis/hash 39.8
[27.5-53.5]
75
29.9
[22.0-39.3]
101
33.3
[26.5-41.0]
176

Note: * Indicates a significant difference between proportion of youth and those of adults.

Table 7.2: Percentage who were a passenger with someone who had consumed alcohol or cannabis or drove after consuming alcohol or cannabis by age, Canada, 2004

Age Passenger
with someone who
had used alcohol
%
[CI]
Passenger with
someone who had
used cannabis
%
[CI]
Driver after
consuming
alcohol
%
[CI]
Driver after
consuming
cannabis
%
[CI]
15-24 32.5
[26.6-39.1]
222
39.6
[33.2-46.3]
234
20.9
[14.8-28.7]
85
39.8
[27.5-53.5]
75
25-44 20.1**
[16.8-23.8]
344
12.8**
[10.1-16.1]
218
12.7*
[10.2-15.8]
187
34.2
[24.4-45.7]
80
45-64 13.3**
[10.3-17.1]
175
5.4**
[3.5-8.2]
60
14.7
[10.8-19.5]
120
s
65+ s s s s

Note: s = estimate suppressed due to high sampling variability or cell size less than 30;
*p < 0.05; **p < 0.01 = difference between age group and the previous group.

Table 7.3: Percentage reporting being a passenger with someone who reported having drunk 2 hours before driving, Canada, aged 15-24, 2004

  N % [95% CI] Adjusted
OR
Total 694 32.5 [26.6-39.1]  
Sex        
Male 346 36.1 [27.4-45.8] 1.223
Female [comparison group] 348 28.4 [21.1-37.1] --
Age [comparison group is previous]        
15-17 195 25.4 [16.4-37.1] --
18-19 143 34.7 [22.0-50.1] 1.506
20-24 356 34.5 [26.3-43.7] 0.979
Region [comparison group is Canada]        
Atlantic 165 25.5 [19.0-33.4] 0.776
Quebec 53 s s s
Ontario 41 s s s
Prairie 279 33.0 [27.6-38.9] 1.083
British Columbia 156 35.4 [28.2-43.2] 1.262
Household Location        
Rural [comparison group] 130 32.1 [19.5-47.9] --
Non-rural 564 32.6 [26.2-39.8] 0.878
Income Adequacy      

*

Lowest [comparison group] 96 33.4 [18.9-51.9] --
Middle 213 27.0 [18.3-37.9] 0.723
Highest 100 57.7 [40.6-73.2] 2.610
Not stated 285 25.2 [17.7-34.6] 0.696

Notes: s = estimate suppressed due to high sampling variability or cell size less than 30;
*p < 0.05; **p < 0.01;
CI = confidence interval;
OR = adjusted for all variables in the table.

Table 7.4: Percentage who reported being a passenger with someone who had used cannabis/hash 2 hours before driving, Canada, aged 15-24, 2004

  N % [95% CI] Adjusted
OR
Total 692 39.6 [33.2-46.3]  
Sex      

*

Male 346 47.4 [38.1-57.0] 1.932*
Female [comparison group] 346 30.5 [22.7-39.5] --
Age [comparison group is previous]      

*

15-17 195 28.8 [19.4-40.5] --
18-19 143 53.4 [39.3-67.1] 2.658*
20-24 354 38.8 [30.1-48.3] 0.528
Region [comparison group is Canada]        
Atlantic 164 34.5 [26.9-43.0] 0.970
Quebec 53 s s s
Ontario 41 s s s
Prairie 279 32.8 [27.4-38.8] 0.851
British Columbia 155 29.8 [23.2-37.4] 0.693
Household Location        
Rural [comparison group] 130 30.9 [19.1-45.9] --
Non-rural 562 40.9 [33.9-48.3] 1.524
Income Adequacy        
Lowest [comparison group] 97 41.1 [24.8-59.6] --
Middle 212 32.5 [22.9-43.7] 0.596
Highest 100 58.1 [41.1-73.4] 1.558
Not stated 283 36.7 [27.2-47.3] 0.787

Notes: s = estimate suppressed due to high sampling variability or cell size less than 30;
*p < 0.05; **p < 0.01;
CI = confidence interval;
OR = adjusted for all variables in the table.