Si Jijian, Zhang Yixin, Li Manyuan, Liu Tour
Department of Clinical Psychology, Tianjin Medical University Central Hospital, Tianjin, China.
School of Psychology, Shaanxi Normal University, Xi'an, China.
Front Psychiatry. 2025 May 30;16:1554239. doi: 10.3389/fpsyt.2025.1554239. eCollection 2025.
This study aimed to examine the psychological mechanisms of depression in both bariatric surgery candidates and post-bariatric surgery patients and to explore the roles of resilience and anxiety in these relationships.
A total of 431 candidates for bariatric surgery were recruited from a hospital. One month after the bariatric surgery, 228 patients continued to participate in the study. All participants completed the Insomnia Severity Index (ISI), Connor and Davidson Resilience Scale (CD-RISC), Generalized Anxiety Disorder 7-item scale (GAD-7), and Patient Health Questionnaire Depression Scale (PHQ-9). A mediation model analysis was used to investigate the mediating role of resilience, the mediating role of anxiety, and the chain mediating role of resilience and anxiety in the relationship between insomnia and depression.
Insomnia positively correlated with depression through the mediating role of resilience, the mediating role of anxiety, and the serial mediating effect of resilience and anxiety among bariatric surgery candidates. However, only a direct effect of insomnia on depression and the mediating role of anxiety were found in post-bariatric surgery patients.
The findings demonstrated that insomnia leads to an increase in depression among bariatric surgery patients, with resilience and anxiety playing significant mediating roles. This also highlights the need for targeted resilience-enhancing interventions in obese patients who are about to undergo bariatric surgery.
本研究旨在探讨减肥手术候选者和减肥手术后患者抑郁的心理机制，并探究心理韧性和焦虑在这些关系中的作用。
从一家医院招募了431名减肥手术候选者。减肥手术后一个月，228名患者继续参与研究。所有参与者均完成了失眠严重程度指数（ISI）、康纳和戴维森心理韧性量表（CD-RISC）、广泛性焦虑障碍7项量表（GAD-7）以及患者健康问卷抑郁量表（PHQ-9）。采用中介模型分析来研究心理韧性的中介作用、焦虑的中介作用以及心理韧性和焦虑在失眠与抑郁关系中的链式中介作用。
在减肥手术候选者中，失眠通过心理韧性的中介作用、焦虑的中介作用以及心理韧性和焦虑的序列中介效应与抑郁呈正相关。然而，在减肥手术后患者中，仅发现失眠对抑郁的直接效应以及焦虑的中介作用。
研究结果表明，失眠会导致减肥手术患者抑郁增加，心理韧性和焦虑起到了重要的中介作用。这也凸显了对即将接受减肥手术的肥胖患者进行有针对性的心理韧性增强干预的必要性。
