Objective: To analyze the trend of smoking prevalence and its risk factors among adults in Shaanxi province from 2007 to 2015. Methods: We used data from China Chronic Disease and Risk Factor Surveillance in 2007, 2010, 2013 and 2015. The current smoking prevalence and trends of the four surveys were calculated. Its risk factors were analyzed by multivariate logistic regression from each survey and then from all pooled data of the three surveys. Results: The number of participants in 2007, 2010, 2013 and 2015 was 1 542, 3 000, 10 166 and 6 330, respectively. The current smoking prevalence dropped from 34.34% in 2007 to 26.22% in 2013, but increased to 28.33% in 2015 (trend χ(2) test: Z=2.53, P=0.01). The results from four pooled data showed that the current smoking prevalence of men was higher than that of women (OR=75.03, 95%CI: 63.57-88.55). The current smoking prevalence of people aged 45-59 was higher than that of people aged 18-44 (OR=1.28, 95%CI: 1.15-1.41). In addition, the current smoking prevalence of those who were educated for 7-9 years and more than 9 years were higher than those who were educated for less than 6 years (people with education for 7-9 years OR=1.44, 95%CI: 1.29-1.61; people with education >9 years OR=1.43, 95%CI: 1.26-1.63). The current smoking prevalence of the single was lower than those of married/cohabitants (OR=0.54, 95%CI: 0.37-0.77). The current smoking prevalence of retirees were lower than those of employees (OR=0.46, 95%CI: 0.38-0.57) and smoking prevalence of alcohol drinkers were higher than those of non-drinkers (OR=2.92, 95%CI: 2.67-3.19). Conclusion: From 2007 to 2015, the current smoking prevalence of Shaanxi population was high and the trends remained stable. It is necessary to strengthen smoking control and health education for men, people over 45 years old, people with education level 7 years and above, and working personnel in Shaanxi province.
目的： 分析2007-2015年陕西省成年人吸烟率变化趋势及其危险因素。 方法： 利用2007、2010、2013和2015年"全国慢性病及其危险因素监测"的数据，计算陕西省4次调查的现在吸烟率及变化趋势，用多因素logistic回归先分别分析4次现在吸烟率的影响因素，后分析4次调查合并后现在吸烟率的影响因素。 结果： 2007、2010、2013、2015年4次横断面调查分别调查1 542、3 000、10 166、6 330人。2007年人群现在吸烟率为34.34%，2013年降至26.22%，但2015年上升到28.33%（趋势χ(2)检验：Z=2.53，P=0.01）；4次调查数据及数据合并后的多因素logistic回归分析显示男性现在吸烟率高于女性（OR=75.03，95%CI：63.57~88.55），45~59岁年龄组人群现在吸烟率高于18~44岁年龄组（OR=1.28，95%CI：1.15~1.41），受教育年限7~9年者及>9年者现在吸烟率高于受教育年限≤6年者（7~9年者OR=1.44，95%CI：1.29~1.61；>9年者OR=1.43，95%CI：1.26~1.63），单身人群现在吸烟率低于已婚/同居者（OR=0.54，95%CI：0.37~0.77），退休人员现在吸烟率低于在职人员（OR=0.46，95%CI：0.38~0.57），饮酒者现在吸烟率高于非饮酒者（OR=2.92，95%CI：2.67~3.19）。 结论： 2007-2015年，陕西省人群现在吸烟率较高且变化不大，应加强对陕西省男性、>45岁人群、受教育年限≥7年、在职人员的控烟工作和健康教育。.
Keywords: Current smoking prevalence; Four cross-sectional surveys; Risk factors; Trend change.