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Table 2 Characteristics of smokers between 2012 and 2017*

From: Differences in smokers’ awareness of the health risks of smoking before and after introducing pictorial tobacco health warnings: findings from the 2012–2017 international tobacco control (ITC) Netherlands surveys

 2012
(n = 1604)
2013
(n = 1531)
2014
(n = 1565)
2015
(n = 1279)
2016
(n = 1263)
2017
(n = 1236)
 
Age group
 15–24 years (%)13.711.511.115.511.510.6χ2 = 44.931
 25–39 years (%)23.523.723.824.121.122.0p < 0.001
 40–54 years (%)32.132.229.827.930.029.8 
 55 years and older (%)30.732.635.332.637.437.5 
Educational level
 Low (%)31.829.126.124.723.723.7χ2 = 71.467
 Moderate (%)44.946.143.742.444.844.8p < 0.001
 High (%)23.324.830.233.031.531.5 
Gender       
 Male (%)54.152.050.754.059.459.5χ2 = 37.729
 Female (%)45.948.049.346.040.640.5p < 0.001
Ever tried to quit
 Yes (%)60.960.257.864.270.773.5χ2 = 114.915
 No (%)39.139.842.235.829.326.5p < 0.001
Heaviness of Smoking Index
 0–1 (%)28.028.729.431.736.737.0χ2 = 59.74
 2–4 (%)64.564.464.562.258.558.9p < 0.001
 5–6 (%)7.56.96.06.24.84.1 
Quit intentions (meana, SD))2.6 (1.1)2.6 (1.2)2.5 (1.2)2.6 (1.2)2.7 (1.2)2.75 (1.29)F = 8.778
       p < 0.001
Smoking frequency
 Daily (%)92.591.290.691.590.791.2χ2=29.354
 Weekly (%)4.86.56.34.35.44.3p=0.001
 Monthly (%)2.72.33.04.23.94.5 
  1. SD standard deviation
  2. *Estimates were weighted for gender and age. χ2 refers to the result of chi-square analyses while the F-value refers to the results of independent sample t-tests
  3. a: On a scale from 1 to 5