广州城市青少年平均开始吸烟年龄及其影响因素

A Study on Age of Smoking Initiation and Related Factors among Urban Adolescents in Guangzhou

目的 探讨计算平均开始吸烟年龄的方法及影响中学生吸烟的因素。方法 对广州市 50所不同类型的学校共 6 2 0 2名 1 2～1 8岁学生不记名吸烟行为问卷调查 ,采用Logistic曲线拟合方法估算平均开始吸烟年龄 ,并对影响吸烟的因素进行多因素Logistic回归分析。结果 广州城市青少年平均开始 (尝试 )吸烟年龄为 1 4 .76岁 (其中男性 1 4 .87岁 ,女性 1 3 .99岁 )。平均开始现在吸烟年龄为 1 6 .60岁 (其中男性 1 6 .72岁 ,女性 1 5 .54岁 )。吸烟的影响因素分析显示 ,调整年龄、性别、就读学校因素后 ,学生学习成绩差、零用钱多、不良心理因素、非双亲照顾、对吸烟行为的错误认识、广告影响和朋友吸烟等 1 1个因素与尝试吸烟有关联 ,学习成绩差、前途无望、零用钱多、对吸烟行为的错误认识、广告影响、朋友和家庭成员吸烟等 7个因素与现在吸烟有关联。结论 初中是青少年开始吸烟的危险阶段 。

Objective In order to explore the methods for calculating age of smoking initiation and smoking-related factors in youths. Methods A logistic regression model was used to estimate the average age of first cigarette smoking based on a cross-sectional survey data from 6202 students age 12 ～18 from 50 different type of secondary schools in Guangzhou city, and to analyze the related factors. Results The average age of first experimentation with cigarette was 14.76 years (male, 14.87 and female, 13.99) and the average age of currently continuous smoking is 16.60 (male, 16.72 and female, 15.54). The factors related to trial smoking included poor study score, more pocket money, depress, not taking care by parents, wrong perception to smoking behavior, influence from commercial advertisement and peer pressures. The factors related to currently smoking included poor study score, hopeless, more pocket money, wrong perception to smoking behavior, influences from commercial advertisement, smoking of friends and family members. Conclusions School juniors are smoking-risk population, smoking abstinence and education are the key measures for smoking control.