Survey | GYTS | |||
Year (nC) | 2012 (824) | 2013 (697) | 2016 (425) | 2020 (316) |
Bought cigarettes in retail shops/NTS | ||||
Prevalence, % (95% CI) | 44.6% (41.2% to 48.0%) | 19.3% (16.4% to 22.2%) | 20.2% (16.4% to 24.0%) | 17.0% (12.9% to 21.1%) |
Percentage point difference from survey series start to end year | 27.6 pp (95% CI 32.9 to 22.2, Z=8.6, p<0.0001, h=0.6) | |||
Asked someone else to buy their tobacco products | ||||
Prevalence, % (95% CI) | 12.9% (10.6% to 15.2%) | 28.7% (25.3% to 32.1%) | 37.2% (32.6% to 41.8%) | 31.6% (26.5% to 36.7%) |
Percentage point difference from survey series start to end year | −18.7 pp (95% CI −13.9 to −24.3, Z=−7.3, p<0.0001, h=−0.5) | |||
Bought tobacco products without excise stamps | ||||
Prevalence, % (95% CI) | 13.3% (11.0% to 15.6%) | 28.5% (25.1% to 31.9%) | 16.7% (13.0% to 20.2%) | 13.4% (9.7% to 17.2%) |
Percentage point difference from survey series start to end year | Not significant (p=0.97, h<0.01) |
GYTS, Global Youth Tobacco Survey; nC, corrected sample size; NTS, National Tobacco Shop; pp, percentage point.