关键词: 青少年, 烟草使用, 电子烟, 影响因素

Abstract: Objective To investigate the prevalence and influencing factors of tobacco use among middle school students in Liwan District, Guangzhou, thereby providing a scientific basis for the development of adolescent tobacco control policies. Methods A cross-sectional survey on tobacco use was conducted from May to July 2025, employing a multi-stage stratified cluster random sampling method among middle school students in Liwan District, Guangzhou. Univariate and multivariate logistic regression analyses were utilized to examine the factors influencing tobacco use. Results A total of 1 219 students from 8 schools were included, comprising 589 males (48.32%) and 630 females (51.68%). In 2025, the prevalence of current smoking among middle school students in Liwan District, Guangzhou, was 4.84% (n=59), and the prevalence of ever-smoking was 9.35% (n=114). The prevalence of current smoking for conventional cigarettes and e-cigarettes was 3.94% (n=48) and 2.54% (n=31), respectively. The prevalence of ever-smoking for these products was 7.55% (n=92) and 5.91% (n=72), respectively. The relate factors for current smoking included a weekly disposable income ≥101 RMB (OR=4.570), excellent (OR=2.885) or poor (OR=3.920) academic performance, not being an only child (OR=2.378), the belief that smoking enhances youth attractiveness (OR=3.019) or has no effect on attractiveness (OR=2.356), having some friends who smoke (OR=2.301), and having a majority of friends who smoke (OR=17.772) (all P<0.05). The relate factors for ever-smoking included being male (OR=2.357), a weekly disposable income ≥101 RMB (OR=2.922), poor academic performance (OR=2.233), perceiving the health hazards of smoking as mild (OR=3.741) or moderate (OR=1.716), having some friends who smoke (OR=1.960), having a majority of friends who smoke (OR=8.445), having both parents who smoke (OR=2.127), and not being an only child (OR=1.858) (all P<0.05). Conclusion The prevalence of current and ever-smoking among middle school students in Liwan District, Guangzhou, is relatively low. Peer smoking, parental smoking, and inaccurate attitudes and cognitions regarding tobacco increase the risk of both current and ever-smoking among adolescents.

Key words: Adolescents, Tobacco use, E-cigarettes, Influencing factors