| Summary: | Introduction
Studies examining e-cigarette use among adolescents in Shanghai,
China, have focused largely on middle school students. Given the vast differences
between vocational and traditional schools, we aimed to explore school-type
differences in e-cigarette use and correlates among adolescents in Shanghai.
Methods
The study was conducted in September 2017 through multistage and
stratified cluster random sampling, which consisted of 10699 adolescents aged
13–17 years attending traditional and vocational schools in Shanghai. Descriptive
statistics and multivariate logistic regressions were conducted to assess the
weighted prevalence and correlates of ever e-cigarette use stratified by school
type.
Results
The weighted prevalence of e-cigarette use was 5.21% among all
respondents. Although e-cigarette use was more prevalent among students
attending vocational schools (p<0.001), its correlates were similar across both
school types. Among vocational school students, ever tobacco use (OR=3.10;
95% CI: 2.36–4.08) was the most significant correlate, followed by having most
friends as smokers (OR=2.97; 95% CI: 1.84–4.81) and having morning cravings
(OR=1.90; 95% CI: 1.64–2.20). Among traditional school students, having most
friends as smokers (OR=4.87; 95% CI: 2.78–8.54) and ever tobacco use (OR=3.78;
95% CI: 2.68–5.34) were the most significant correlates, followed by knowledge
of pro-tobacco advertisements (OR=2.12; 95% CI: 1.54–2.91).
Conclusions
Joint efforts from the national, school and family levels are needed to
control e-cigarette use among adolescents in China, and such efforts should be
tailored to address differences in school characteristics.
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