Rothwell Lucas, Britton John, Bogdanovica Ilze
University of Nottingham, Nottingham, UK.
Division of Epidemiology and Public Health, UK Centre for Tobacco and Alcohol Studies, University of Nottingham, Nottingham, UK.
BMJ Open. 2015 Jun 15;5(6):e007697. doi: 10.1136/bmjopen-2015-007697.
Cigarette price increases reduce smoking prevalence but as a tobacco control policy are undermined by the availability of lower cost alternatives such as hand-rolling tobacco. The aim of this descriptive study is to explore time trends in the price of manufactured cigarettes and hand-rolling tobacco, and in the numbers of people who smoke these products, over recent years in the UK.
UK.
Trends in the most popular price category (MPPC) data for cigarettes and hand-rolling tobacco from 1983 to 2012 adjusted for inflation using the Retail Price Index, and trends in smoking prevalence and the proportion of smokers using hand-rolling tobacco from 1974 to 2010.
After adjustment for inflation, there was an increase in prices of manufactured cigarettes and hand-rolling tobacco between 1983 and 2012. Between 1974 and 2010, the prevalence of smoking fell from 45% to 20%, and the estimated total number of smokers from 25.3 to 12.4 million. However the number of people smoking hand-rolling tobacco increased from 1.4 to 3.2 million, and MPPC cigarette price was strongly correlated with number of people smoking hand-rolling tobacco.
Although the ecological study design precludes conclusions on causality, the association between increases in manufactured cigarette price and the number of people smoking hand-rolling tobacco suggests that the lower cost of smoking hand-rolling tobacco encourages downtrading when cigarette prices rise. The magnitude of this association indicates that the lower cost of hand-rolling tobacco seriously undermines the use of price as a tobacco control measure.
提高香烟价格可降低吸烟率,但作为一项烟草控制政策,却因手卷烟等低成本替代品的可得性而受到影响。这项描述性研究的目的是探讨近年来英国机制卷烟和手卷烟的价格变化趋势,以及吸食这些产品的人数变化趋势。
英国。
采用零售物价指数对1983年至2012年机制卷烟和手卷烟最常见价格类别(MPPC)数据进行通货膨胀调整后的趋势,以及1974年至2010年吸烟率和使用手卷烟的吸烟者比例的趋势。
经通货膨胀调整后,1983年至2012年期间机制卷烟和手卷烟的价格均有所上涨。1974年至2010年期间,吸烟率从45%降至20%,估计吸烟总人数从2530万降至1240万。然而,吸食手卷烟的人数从140万增加到320万,MPPC卷烟价格与吸食手卷烟的人数密切相关。
尽管生态学研究设计无法得出因果关系的结论,但机制卷烟价格上涨与吸食手卷烟人数之间的关联表明,手卷烟较低的成本促使人们在卷烟价格上涨时转向吸食手卷烟。这种关联的程度表明,手卷烟较低的成本严重削弱了价格作为一种烟草控制措施的作用。