Cheng Zhao-Jun, Tao Hu, Huan Hua-Guo, Wu Chun-Mei, Wang Qi, Hao Ming
School of Public Health and Health Management, Gannan Medical University, Ganzhou 341000, Jiangxi Province, China.
Jiangxi College of Applied Technology, Ganzhou 341000, Jiangxi Province, China.
World J Psychiatry. 2025 Sep 19;15(9):109611. doi: 10.5498/wjp.v15.i9.109611.
With the increasing global incidence of mental illness, depression has become a serious problem among college students.
To investigate the relationship between depression and its correlates in Chinese adolescents and to identify diagnostic predictors of depression, examine the effects of binge eating, physical activity, and body dissatisfaction on depression among college students and to determine a diagnostic cutoff value for depression based on body dissatisfaction.
We conducted a cross-sectional survey of 1286 college students in South China. Physical activity level, depressive symptoms, and binge eating behavior were assessed using the Physical Activity Scale-3, Zung Self-Rating Depression Scale, and Dutch Eating Behavior Questionnaire, respectively. The absolute difference between actual body mass index (BMI) and ideal BMI was used to indicate the level of body dissatisfaction. Structural equation modeling (SEM) and receiver operating characteristic (ROC) curve analysis were used to examine the relationships between these variables and depression.
The findings showed that female college students reported higher levels of depression. Physical activity, body dissatisfaction, and binge eating behavior were significantly associated with depression. SEM revealed that body dissatisfaction played a mediating role. A body dissatisfaction score of 1.73 was identified as the diagnostic cutoff value for predicting depression, with an area under the ROC curve of 70.0%, providing a basis for targeted interventions.
This study demonstrated a significant positive correlation between body dissatisfaction and depression. Low levels of physical activity and binge eating behaviors were found to heighten the risk of depression. Therefore, promoting physical activity and healthy eating habits among adolescents is essential. Additionally, the identification of a diagnostic threshold for body dissatisfaction represents a novel finding with important implications for early screening. Future longitudinal studies are recommended to further refine this diagnostic criterion.
随着全球精神疾病发病率的上升，抑郁症已成为大学生中的一个严重问题。
调查中国青少年抑郁症与其相关因素之间的关系，确定抑郁症的诊断预测因素，研究暴饮暴食、体育活动和身体不满意对大学生抑郁症的影响，并基于身体不满意确定抑郁症的诊断临界值。
我们对中国南方的1286名大学生进行了横断面调查。分别使用体育活动量表-3、zung自评抑郁量表和荷兰饮食行为问卷评估体育活动水平、抑郁症状和暴饮暴食行为。实际体重指数（BMI）与理想BMI的绝对差值用于表示身体不满意程度。采用结构方程模型（SEM）和受试者工作特征（ROC）曲线分析来研究这些变量与抑郁症之间的关系。
研究结果表明，女大学生的抑郁水平较高。体育活动、身体不满意和暴饮暴食行为与抑郁症显著相关。SEM显示身体不满意起中介作用。身体不满意得分1.73被确定为预测抑郁症的诊断临界值，ROC曲线下面积为70.０%，为有针对性的干预提供了依据。
本研究表明身体不满意与抑郁症之间存在显著正相关。低水平的体育活动和暴饮暴食行为会增加患抑郁症的风险。因此，促进青少年的体育活动和健康饮食习惯至关重要。此外，确定身体不满意的诊断阈值是一项新发现，对早期筛查具有重要意义。建议未来进行纵向研究以进一步完善这一诊断标准。
