Table 3
Sensitivity and specificity of self-reported smoking status, by sex and age group, household population aged 12 to 79, Canada, March 2007 to February 2009

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Table 3
Sensitivity and specificity of self-reported smoking status, by sex and age group, household population aged 12 to 79, Canada, March 2007 to February 2009 .
Table summary
This table displays the results of Sensitivity and specificity of self-reported smoking status. The information is grouped by Sex/Age group (years) appearing as row headers and is grouped by Sensitivity (%, 95% confidence interval(from, to)) Specificity (%, 95% confidence interval(from, to)) appearing as column headers using % as a unit of measure.
Sex/Age group (years) Sensitivity Specificity
% 95% confidence interval % 95% confidence interval
from to from to
Total 91.6 86.3 95.0 98.3 97.4 98.9
12 to 19 81.6 56.5 93.8 96.9 94.0 98.4
20 to 79 92.0 86.3 95.4 98.6 97.8 99.1
Male 92.1 86.7 95.4 98.4 97.3 99.1
12 to 19 76.3 33.0 95.5 97.9 94.7 99.2
20 to 79 92.6 87.4 95.7 98.5 97.4 99.1
Female 91.2 84.4 95.1 98.3 96.9 99.0
12 to 19 85.0 53.3 96.6 95.8 89.6 98.3
20 to 79 91.4 83.9 95.6 98.6 97.6 99.2
Note: Excludes respondents who did not have a valid cotinine test result, reported using a medication with nicotine as an active ingredient in the past month, or reported smoking cigars or a pipe, or using snuff of chewing tobacco.
Source: 2007 to 2009 Canadian Health Measures Survey.