Faculty of Psychology, Southwest University, Chongqing 400715, China.
Department of Psychology, Chongqing City Management College, Chongqing 401331, China.
Nutrients. 2022 Mar 17;14(6):1281. doi: 10.3390/nu14061281.
This study aimed to determine whether smartphone addiction and depression sequentially mediate the relationship between body dissatisfaction and disordered eating behaviors (e.g., restrained eating, emotional eating and external eating). A total of 5986 participants (54.1% females, average age = 19.8 years, age range = 17-32) completed the Satisfaction and Dissatisfaction with Body Parts Scale, the Three-Factor Eating Questionnaire, the Smartphone Addiction Scale and the Patient Health Questionnaire-9. Mediational analysis showed that, after controlling for age, sex and body mass index, body dissatisfaction was related to disordered eating behaviors through (a) the mediating effect of smartphone addiction, (b) the mediating effect of depression, and (c) the serial mediating effect of smartphone addiction and depression. In conclusion, our study showed for the first time that smartphone addiction and depression can be sequential mediator variables in the association between body dissatisfaction and disordered eating. However, this study is a cross-sectional study; future longitudinal studies could further test the causal associations between these study variables.
本研究旨在确定智能手机成瘾和抑郁是否依次中介了身体不满与饮食失调行为（如节制饮食、情绪性饮食和外食）之间的关系。共有 5986 名参与者（女性占 54.1%，平均年龄为 19.8 岁，年龄范围为 17-32 岁）完成了身体部位满意度和不满度量表、三因素饮食问卷、智能手机成瘾量表和患者健康问卷-9。中介分析表明，在控制年龄、性别和体重指数后，身体不满通过（a）智能手机成瘾的中介作用，（b）抑郁的中介作用，以及（c）智能手机成瘾和抑郁的序列中介作用与饮食失调行为有关。总之，本研究首次表明，智能手机成瘾和抑郁可能是身体不满与饮食失调之间关联的顺序中介变量。然而，本研究是一项横断面研究；未来的纵向研究可以进一步检验这些研究变量之间的因果关系。
