中国大学生社交媒体使用问题与心理困扰之间的关联：一项探讨饮食失调中介作用的横断面研究
Association between problematic social media use and psychological distress among college students: a cross-sectional study in China exploring the mediating role of eating disorders.
作者信息
Hu Niaona, Xiao Xiafang, Soh Kim Lam
机构信息
Department of Nursing and Rehabilitation, Universiti Putra Malaysia, Serdang, Malaysia.
Jiangxi Open University, Nanchang, China.
出版信息
BMJ Open. 2025 May 21;15(5):e092863. doi: 10.1136/bmjopen-2024-092863.
OBJECTIVES
This study aimed to examine the mediating role of eating disorders in the association between problematic social media use (PSMU) and psychological distress, including anxiety, depression and stress, among Chinese college students. The primary hypothesis was that eating disorders would partially mediate the relationship between PSMU and psychological distress.
DESIGN
A cross-sectional study.
SETTING
Participants were recruited from a vocational college in Jiangxi, China.
PARTICIPANTS
A total of 454 college students aged 18 years or older participated in the study. The median age was 19 years (IQR=18, 20), and 73.4% were male. Participants were included if they were enrolled in college and able to provide informed consent. Students undergoing psychological treatment or taking psychiatric medications were excluded.
PRIMARY OUTCOME MEASURES
PSMU was assessed using the Bergen Social Media Addiction Scale, psychological distress was assessed using the Depression Anxiety Stress Scales-21 and eating disorder symptoms were assessed using the SCOFF questionnaire.
RESULTS
PSMU was significantly associated with higher levels of psychological distress (r=0.321, p<0.05) and eating disorders (r=0.298, p<0.05). The mediation analysis showed that eating disorders accounted for 39.8% of the total effect of PSMU on psychological distress. The indirect effect of PSMU on psychological distress through eating disorders was statistically significant (B=0.119, SE=0.018, p<0.001).
CONCLUSIONS
Eating disorders play a partial mediating role in the relationship between PSMU and psychological distress among Chinese college students. These findings highlight the need for mental health interventions addressing both PSMU and eating disorders. Future research should use longitudinal designs to establish causal relationships.
TRIAL REGISTRATION NUMBER
ChiCTR2300078008.
目的
本研究旨在探讨饮食失调在中国大学生有问题的社交媒体使用（PSMU）与心理困扰（包括焦虑、抑郁和压力）之间的中介作用。主要假设是饮食失调将部分介导PSMU与心理困扰之间的关系。
设计
横断面研究。
背景
参与者来自中国江西的一所职业学院。
参与者
共有454名18岁及以上的大学生参与了本研究。年龄中位数为19岁（四分位间距=18,20），73.4%为男性。纳入条件为已注册入学且能够提供知情同意书的学生。正在接受心理治疗或服用精神科药物的学生被排除。
主要结局指标
使用卑尔根社交媒体成瘾量表评估PSMU，使用抑郁焦虑压力量表-21评估心理困扰，使用SCOFF问卷评估饮食失调症状。
结果
PSMU与较高水平的心理困扰（r=0.321，p<0.05）和饮食失调（r=0.298，p<0.05）显著相关。中介分析表明，饮食失调占PSMU对心理困扰总效应的39.8%。PSMU通过饮食失调对心理困扰的间接效应具有统计学意义（B=0.119，SE=0.018，p<0.001）。
结论
饮食失调在中国大学生PSMU与心理困扰之间的关系中起部分中介作用。这些发现凸显了针对PSMU和饮食失调进行心理健康干预的必要性。未来的研究应采用纵向设计来建立因果关系。
试验注册号
ChiCTR2300078008。
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