MRC Social and Public Health Sciences Unit, 4 Lilybank Gardens, Glasgow, G12 8RZ Scotland, UK.
Thorax. 2011 Oct;66(10):866-74. doi: 10.1136/thoraxjnl-2011-200095. Epub 2011 Jul 15.
Evidence of high exposure of UK youth to images of smoking in films has led to calls for an 18 rating for films with smoking to reduce smoking in youth. However, the only study to date in the UK to test for an association showed no relation between film-smoking exposure and smoking among young adults.
To assess whether there is an association between exposure to film images of smoking and own smoking among UK adolescents and whether repeated viewings of films has an impact.
Cross-sectional study.
1999 pupils aged 15-16 years from 13 Scottish schools. Outcome Smoked tobacco in the past year. EXPOSURE MEASURE: Film-smoking exposure was assessed using the Beach method; account for repeated viewings of films was then used to modify estimated exposure. Covariates included: media usage, parental restriction on and context of TV/film viewing, family connectedness, parental monitoring and friends' smoking.
Most (71%) students had not smoked in the past year. About half reported no parental restrictions on TV/film viewing. Many reported repeated viewings of films; accounting for this more than doubled exposure estimates and strengthened the association with smoking. Adolescents with high exposure to film smoking were more likely to have smoked than those with low exposure (adjusted odds ratio (AOR) 2.08, 95% CI 1.22 to 3.55). Additionally, adolescents who reported parental rules about TV/film watching were less likely to smoke (AOR 0.37 (0.27 to 0.52)) than those who did not. Adolescents who mainly watched films with friends had higher exposure to film smoking and were more likely to smoke (AOR 2.19 (1.10 to 4.38)).
Exposure to film smoking is associated with smoking among Scottish adolescents. These data lend support to calls for an 18 rating for films with images of smoking.
有证据表明，英国青少年接触电影中吸烟镜头的程度很高，这促使人们呼吁对有吸烟镜头的电影进行 18 岁以上级别评定，以减少青少年吸烟。然而，迄今为止英国唯一一项对此进行测试的研究表明，电影中吸烟镜头的暴露程度与年轻人吸烟之间没有关系。
评估英国青少年接触电影中吸烟镜头与自身吸烟之间是否存在关联，以及重复观看电影是否会产生影响。
横断面研究。
来自苏格兰 13 所学校的 1999 名 15-16 岁的学生。结果为过去一年吸烟情况。
使用 Beach 方法评估电影吸烟暴露情况；然后使用重复观看电影的情况来修正估计的暴露量。协变量包括：媒体使用、父母对电视/电影观看的限制及其环境、家庭联系、父母监督和朋友吸烟情况。
大多数（71%）学生过去一年没有吸烟。大约一半的学生报告说父母没有限制他们看电视/电影。许多学生报告重复观看电影；这样做使暴露量的估计值增加了一倍以上，并加强了与吸烟的关联。高电影吸烟暴露量的青少年比低暴露量的青少年更有可能吸烟（调整后的优势比（OR）2.08，95%可信区间（CI）1.22 至 3.55）。此外，报告父母有关于电视/电影观看规则的青少年比没有报告的青少年吸烟的可能性更小（OR 0.37（0.27 至 0.52））。主要与朋友一起观看电影的青少年对电影中吸烟镜头的暴露程度更高，更有可能吸烟（OR 2.19（1.10 至 4.38））。
电影中吸烟镜头的暴露与苏格兰青少年吸烟有关。这些数据支持对有吸烟镜头的电影进行 18 岁以上级别评定的呼吁。
