Changes in child exposure to environmental tobacco smoke (CHETS) study after implementation of smoke-free legislation in Scotland: national cross sectional survey
Changes in child exposure to environmental tobacco smoke (CHETS) study after implementation of smoke-free legislation in Scotland: national cross sectional survey
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DOI：
10.1136/bmj.39311.550197.ae
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发表时间：
2007-09-15
影响因子：
105.7
通讯作者：
Haw, Sally J.
中科院分区：
文献类型：
--
作者：
Akhtar, Patricia C.;Currie, Dorothy B.;Haw, Sally J.
目的检测2006年3月苏格兰实施无烟立法后小学生二手烟暴露的任何变化。设计比较立法前后在相同学校进行的具有全国代表性的、横断面的、基于班级的调查。设置苏格兰。参与者2559名小学生（小学七年级;平均年龄11.4岁）（无烟立法前）和2007年1月的2424结果测量唾液可替宁浓度，父母吸烟的报告，结果不吸烟儿童唾液中可替宁浓度几何均值从0.36下降到0.36，差异有统计学意义（P < 0.05）。（95%置信区间0.32至0.40）ng/ml至0.22（0.19至0.25）ng/ml后，在苏格兰的无烟立法的介绍，减少了39%。可替宁浓度下降的程度根据家中吸烟的父母人数而有所不同，但只有生活在父母都不吸烟的家庭中的学生才具有统计学意义（下降51%，从0.14（0.13 - 0.16）ng/ml降至0.07（0.06至0.08）纳克/毫升）和生活在只有父亲吸烟的家庭中的学生（下降44%，从0.57（0.47 - 0.70）ng/ml降至0.32（0.25 - 0.42）ng/ml）。据报道，学生在自己家中或汽车中接触二手烟的情况几乎没有变化，但据报道，在其他人家中接触二手烟的情况略有下降。学生报告说，在咖啡馆和餐馆，并在公共交通literation.Conclusions后，苏格兰无烟立法减少了接触二手烟的年轻人在苏格兰，特别是在家庭中接触较低的群体。我们没有发现任何证据表明，年轻人接触二手烟的增加与父母吸烟到家中的位移有关。因此，苏格兰无烟立法对年轻人的健康产生了积极的短期影响，但还需要进一步努力促进无烟家庭和戒烟。
Objective To detect any change in exposure to secondhand smoke among primary schoolchildren after implementation of smoke-free legislation in Scotland in March 2006.Design Comparison of nationally representative, cross sectional, class based surveys carried out in the same schools before and after legislation.Setting Scotland.Participants 2559 primary schoolchildren (primary 7; mean age 11.4 years) surveyed in January 2006 (before smoke-free legislation) and 2424 in January 2007 (after legislation).Outcome measures Salivary cotinine concentrations, reports of parental smoking, and exposure to tobacco smoke in public and private places before and after legislation.Results The geometric mean salivary cotinine concentration in non-smoking children fell from 0.36 (95% confidence interval 0.32 to 0.40) ng/ml to 0.22 (0.19 to 0.25) ng/ml after the introduction of smoke-free legislation in Scotland-a 39% reduction. The extent of the fall in cotinine concentration varied according to the number of parent figures in the home who smoked but was statistically significant only among pupils living in households in which neither parent figure smoked (51% fall, from 0.14 (0.13 to 0.16) ng/ml to 0.07 (0.06 to 0.08) ng/ml) and among pupils living in households in which only the father figure smoked (44% fall, from 0.57 (0.47 to 0.70) ng/ml to 0.32 (0.25 to 0.42) ng/ml). Little change occurred in reported exposure to secondhand smoke in pupils' own homes or in cars, but a small decrease in exposure in other people's homes was reported. Pupils reported lower exposure in cafes and restaurants and in public transport after legislation.Conclusions The Scottish smoke-free legislation has reduced exposure to secondhand smoke among young people in Scotland, particularly among groups with lower exposure in the home. We found no evidence of increased secondhand smoke exposure in young people associated with displacement of parental smoking into the home. The Scottish smoke-free legislation has thus had a positive short term impact on young people's health, but further efforts are needed to promote both smoke-free homes and smoking cessation.