Table 5

Percentage of adolescents who were often exposed to tobacco advertising, promotion and sponsorship, stratified by individual characteristics (n=2820)

Age in yearsP value*GenderP value*†Smoking statusP value*†
13–1415–1617–18GirlsBoysNon-smokerSmoker
Internet
 Instagram23.932.233.2<0.0130.129.10.0228.932.70.39
 Facebook23.130.426.6<0.0124.729.10.1625.632.10.59
 YouTube20.628.121.50.1219.328.4<0.0120.637.1<0.01
 Twitter4.99.08.1<0.015.19.8<0.016.312.1<0.01
 Online news22.428.329.50.0227.925.20.0226.427.50.99
Outdoor advertising
 Billboard54.452.057.70.1355.353.50.0155.350.7<0.01
 Electric banner22.622.625.30.1323.023.70.0124.119.90.85
Broadcast media
 Television73.574.573.90.0273.175.00.0674.173.60.12
 Radio4.57.19.6<0.016.47.50.546.58.60.33
Tobacco industry sponsorship‡
 Live music37.547.854.7<0.0159.447.9<0.0142.960.6<0.01
 Sport event28.536.441.1<0.0131.060.7<0.0133.740.70.04
  • *P value was derived from the Wald test in multilevel logistic regression model with no exposure vs often exposure.

  • †Responses were only ‘no’ and ‘yes’.

  • ‡Models comparing boys and girls, and smokers and non-smokers were adjusted for age.