目的了解中学生吸烟状况,探讨陕西省西安市中学生吸烟行为与其生活事件的关系,为预防青少年吸烟提供依据。方法从西安市6个区随机抽取8所中学的初二、高一和高三学生1028名,调查中学生日常的人际关系、学习、受惩罚、丧失、健康与适应等压力感受与其吸烟行为的关系。结果西安市中学生吸烟率为34.1%,其中男生为50.8%,女生为1.0%;初二年级学生在人际关系、亲友与财产丧失、健康与适应问题和其他压力得分分别为(8.72±3.78)、(4.04±3.08)、(4.37±4.90)、(5.05±3.70)分,明显高于总体平均值(8.08±3.74)、(3.71±3.00)、(3.43±3.12)、(4.31±3.23)分;多因素Logistic回归分析结果表明,男性(OR=9.351)、初二年级(OR=2.356)、人际关系(OR=1.430)、学习压力(OR=1.778)、受惩罚(OR=2.518)、亲友与财产丧失(OR=1.693)、健康与适应问题(OR=2.152)及其他压力(OR=4.368)是吸烟的危险因素。结论西安市中学生所经历的各种负性应激事件与其吸烟行为关系密切。 Objective To understand the smoking status of middle school students and to explore the relationship between smoking behavior and life events of middle school students in Xi’an, Shaanxi Province, so as to provide basis for prevention of smoking among adolescents. Methods A total of 1028 students from 8 middle schools in 8 middle schools were randomly selected from 6 districts in Xi’an to investigate the relationship between stress perception and smoking behavior of middle school students such as daily interpersonal relationship, learning, punishment, loss, health and adaptation. Results The prevalence of smoking among middle school students in Xi’an was 34.1%, of which 50.8% were for boys and 1.0% for girls. The scores of interpersonal relationships, relatives and friends and property loss, health and adaptation and other stress scores were (8.72 ± 3.78), (4.04 ± 3.08), (4.37 ± 4.90) and (5.05 ± 3.70), respectively, which were significantly higher than the overall mean (8.08 ± 3.74), (3.71 ± 3.00), (3.43 ± 3.12) and (4.31 ± 3.23) Multivariate logistic regression analysis showed that there was significant difference between male (OR = 9.351), second grade (OR = 2.356), interpersonal relationship (OR = 1.430), study stress Loss of property (OR = 1.693), health and adaptation (OR = 2.152) and other stressors (OR = 4.368) were risk factors for smoking. Conclusion The various negative stress events experienced by middle school students in Xi’an are closely related to their smoking behavior.