%0期刊文章%@ 2369-2960 %I JMIR出版物%V 3% 卡塔尔世界杯8强波胆分析N 4% P e64% T环境细颗粒物对中国公众肺癌风险意识的影响:来自互联网大数据平台的证据杨a，李红曦，孙姝，张莉，侯新宇，王杰，姚刚+天津医科大学公共卫生学院，天津市和平区七香台路22号，300070,86 13820046130，wyg@tmu.edu.cn %K肺癌%K危险因素%K颗粒物%K PM2.5 %K百度指数%K信息寻求行为%K公众意识%K中国%D 2017 %7 03.10.2017 %9原始论文%J JMIR公共卫生监测%G英文%X背景:2013年10月，国际癌症研究机构将室外空气污染中的颗粒物列为1类致癌物，并宣布颗粒物可导致肺癌。细颗粒物(PM2.5)污染正在成为中国城市地区严重的公共卫生问题。必须强调公众对肺癌可改变危险因素的认识和知识对预防的重要性。目的:我们的研究目的是通过分析互联网大数据平台百度上PM2.5日浓度与“肺癌”一词搜索量之间的关系，了解中国公众对PM2.5与肺癌风险关系的认知。方法:收集2014年1月1日至2016年12月31日中国31个省会城市PM2.5浓度日数据和百度指数日数据。我们使用Spearman相关分析来探索肺癌搜索的每日百度指数与每日平均PM2.5浓度之间的相关性。采用格兰杰因果检验分析两个时间序列变量之间的因果关系。结果:在31个城市中，23个城市肺癌搜索日百度指数与PM2.5日平均浓度之间的两两相关系数(Spearman rho)为正，具有统计学意义(P<.05)。 However, the correlation between the daily Baidu Index for lung cancer searches and the daily average PM2.5 concentration was poor (all r2s<.1). Results of Granger causality testing illustrated that there was no unidirectional causality from the daily PM2.5 concentration to the daily Baidu Index for lung cancer searches, which was statistically significant at the 5% level for each city. Conclusions: The daily average PM2.5 concentration had a weak positive impact on the daily search interest for lung cancer on the Baidu search engine. Well-designed awareness campaigns are needed to enhance the general public’s awareness of the association of PM2.5 with lung cancer risk, to lead the public to seek more information about PM2.5 and its hazards, and to cope with their environment and its risks appropriately. %M 28974484 %R 10.2196/publichealth.8078 %U https://publichealth.www.mybigtv.com/2017/4/e64/ %U https://doi.org/10.2196/publichealth.8078 %U http://www.ncbi.nlm.nih.gov/pubmed/28974484