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目的对上海市初中生尝试吸烟的环境感知系统进行分析,为初中生控烟工作提供依据。方法通过横断面研究,采用分层整群抽样的方式,对上海市23所初中的12 413名初中生的尝试吸烟情况及环境感知系统进行调查;并对感知系统中的因素进行Logistic回归分析,分析其对尝试吸烟的影响。结果初中生尝试吸烟率为6.8%,男生的尝试吸烟率为9.3%,明显高于女生的4.6%(P<0.001)。多因素Logistic回归分析结果显示:环境感知系统中的7项因素对初中生尝试吸烟行为均有影响,主要因素包括同伴吸烟压力(OR=4.12,95%CI:3.50～4.84)、家庭烟草暴露多(OR=1.46,95%CI:1.38～1.96)、媒体烟草暴露多(OR=1.40,95%CI:1.19～1.65)以及吸烟认同度高(OR=1.37,95%CI:1.17～1.60)。结论环境感知系统中各项因素均与初中生尝试吸烟行为的发生密切相关,应作为初中生控烟工作的重点。
Objective To analyze the environmental perception system of junior high school students attempting to smoke in Shanghai and provide the basis for junior high school students’ tobacco control work. Methods A cross-sectional study was conducted by stratified cluster sampling to investigate the smoking status and environmental perception system of 12 413 junior high school students in 23 middle schools in Shanghai. Logistic regression analysis was conducted on the factors in the perception system, Analyze its impact on smoking attempts. Results Junior high school students attempted smoking 6.8%, boys attempted smoking 9.3%, significantly higher than girls 4.6% (P <0.001). Multivariate logistic regression analysis showed that seven factors in environmental perception system had influence on junior high school students attempting smoking. The main factors included peer smoking pressure (OR = 4.12, 95% CI: 3.50-4.84), family tobacco exposure (OR = 1.46, 95% CI: 1.38-1.96). Tobacco exposure was more in the media (OR = 1.40, 95% CI: 1.19-1.65) and higher in smoking acceptance (OR = 1.37, 95% CI: 1.17-1.60). Conclusion All the factors in environmental perception system are closely related to the occurrence of junior high school students attempting to smoke, and should be the focus of tobacco control for junior high school students.