久坐和吸烟在屏幕暴露对男性内脏肥胖指数关系的链式中介作用  

The chain mediating role of sedentary behavior and smoking in the relationship between screen exposure and visceral fat index in men

作　　者：赵否曦 朱玲[1] 汪姜涛 杜瑀 刘涛[1] ZHAO Fou-xi;ZHU Ling;WANG Jiang-tao;DU Yu;LIU Tao(Guizhou Provincial Center for Disease Control and Prevention,Guiyang,Guizhou 550004,China)

机构地区：[1]贵州省疾病预防控制中心,贵州贵阳550004

出　　处：《现代预防医学》2024年第23期4244-4248,4254,共6页Modern Preventive Medicine

基　　金：贵州省卫生健康委科学技术基金项目(gzwkj2021-550);贵州省科技厅基础研究项目[黔科合基础-ZK(2022)一般-244;贵州省高层次创新型人才培养项目]。

摘　　要：目的探究屏幕暴露与成人男性的内脏肥胖指数之间的链式中介作用。方法本文采用2020年贵州省慢性病危险因素调查数据中男性调查对象,使用健康行为方式问卷获取电子屏幕接触时间、久坐情况、吸烟量;通过实验室指标检测获取血脂情况,体格测量获取身高、体重、腰围等体格情况。使用相关系数矩阵分析各变量之间的相关性大小,构建多重中介效应模型,研究久坐时间、吸烟量在男性屏幕暴露与内脏肥胖指数关系中的中介路径。使用SPSS的process插件并用bootstrap法检验链式中介效应,Amos绘制中介路径。结果共计纳入1174例研究对象,在控制了年龄、城乡、教育程度、婚姻状况和职业以后,回归结果显示屏幕暴露对男性内脏肥胖指数的直接影响显著(β=0.232,95%CI:0.915~0.270),久坐时间(β=0.046,95%CI:0.038~0.055)和吸烟量(β=0.031,95%CI:0.004~0.059)显著影响男性内脏肥胖指数。中介效应分析结果显示,久坐时间和吸烟量在屏幕暴露和男性内脏肥胖指数之间的简单中介效应分别为0.018(95%CI:0.020~0.033)和0.056(95%CI:0.042~0.072),链式中介效应为0.009(95%CI:0.003~0.014)。结论久坐和吸烟在屏幕暴露对男性内脏肥胖指数中存在中介效应,屏幕暴露是最常见的生活方式,尤其男性应减少屏幕暴露时间中的吸烟和久坐行为,减少内脏肥胖的发生。Objective To investigate the chain mediating effects of sedentary behavior and smoking on the relationship between screen exposure and visceral fat index in adult men.Methods Data were collected from the 2020 Chronic Disease Risk Factor Survey in Guizhou Province,focusing on male participants.A health behavior questionnaire was employed to gather information on electronic screen exposure time,sedentary behavior,and smoking quantity.Laboratory indicators were used to assess blood lipid levels,while physical measurements provided data on height,weight,and waist circumference.A correlation coefficient matrix was constructed to analyze the relationships among variables,and a multiple mediation model was developed to explore the mediating pathways of sedentary time and smoking in the relationship between screen exposure and visceral fat index.The PROCESS plugin in SPSS was used to test the chain mediation effects via the bootstrap method,and the mediation pathways were illustrated using Amos.Results A total of 1174 subjects were included in the study.After controlling for age,urban/rural status,education level,marital status,and occupation,regression results indicated a significant direct effect of screen exposure on the visceral fat index in men(β=0.232,95%CI:0.915-0.270).Sedentary time(β=0.046,95%CI:0.038-0.055)and smoking quantity(β=0.031,95%CI:0.004-0.059)were also found to significantly influence the visceral fat index.The mediation analysis revealed that the simple mediating effects of sedentary time and smoking between screen exposure and the visceral fat index were 0.018(95%CI:0.020-0.033)and 0.056(95%CI:0.042-0.072),respectively,while the chain mediation effect was 0.009(95%CI:0.003-0.014).Conclusion Sedentary behavior and smoking exhibit mediating effects in the relationship between screen exposure and visceral fat index in men.As screen exposure is a prevalent lifestyle factor,it is crucial for men to reduce smoking and sedentary behaviors during screen time to mitigate the occurrence of visceral obesity

关 键 词：屏幕暴露 内脏肥胖 中介分析 

分 类 号：R589.2[医药卫生—内分泌]