Osaki Yoneatsu, Ohida Takashi, Kanda Hideyuki, Kaneita Yoshitaka, Kishimoto Takuji
Faculty of Medicine, Tottori University, Tottori, Japan.
Asian Pac J Cancer Prev. 2012;13(3):1011-4. doi: 10.7314/apjcp.2012.13.3.1011.
The possibility that smoking prevalence among junior and senior high school students may decrease with increasing mobile phone bill was reported by the mass media in Japan. We conducted a nationwide survey on adolescent smoking and mobile phone use in Japan in order to assess the hypothesis that mobile phone use has replaced smoking.
A total of 70 junior high schools (response rate; 71%), and 69 high schools (90%) from all over Japan responded to 2005 survey. Students in the responding schools were asked to fill out an anonymous questionnaire about smoking behavior, mobile phone bill, and pocket money. Questionnaires were collected from 32,615 junior high school students and 48,707 senior high school students.
The smoking prevalence of students with high mobile phone bill was more likely to be high, and that of students who used mobile phones costing 10,000 yen and over per month was especially high. When "quitters" were defined as students who had tried smoking but were not smoking at the time of survey, the proportion of quitters decreased as the mobile phone bill increased. The proportion of students who had smoking friends increased with the increase in the mobile phone bill per month.
The hypothesis that the decrease in smoking prevalence among Japanese adolescents that has been observed in recent years is due to a mobile phone use can be rejected.
日本大众媒体报道，初中生和高中生的吸烟率可能会随着手机话费的增加而下降。我们在日本开展了一项关于青少年吸烟与手机使用情况的全国性调查，以评估手机使用已取代吸烟这一假设。
2005年的调查共收到来自日本各地70所初中（回复率71%）和69所高中（90%）的回复。参与调查学校的学生被要求填写一份关于吸烟行为、手机话费和零花钱的匿名问卷。共收集到32615名初中生和48707名高中生的问卷。
手机话费高的学生吸烟率更有可能偏高，每月使用话费在1万日元及以上手机的学生吸烟率尤其高。当将“戒烟者”定义为曾经尝试吸烟但在调查时不吸烟的学生时，戒烟者的比例随着手机话费的增加而降低。有吸烟朋友的学生比例随着每月手机话费的增加而上升。
近年来观察到的日本青少年吸烟率下降是由于手机使用这一假设可以被否定。
