【摘要】 背景 青少年非自杀性自伤（NSSI）行为成瘾问题日益突出，既往研究虽已识别多种相关危险因素，并关注屏幕使用时间与NSSI行为的关系，但屏幕使用时间对NSSI行为成瘾的影响及家庭功能失调在二者关系中的作用机制仍有待进一步阐明。目的 探索家庭功能失调在屏幕使用时间与青少年女性抑郁障碍患者NSSI行为成瘾之间的作用路径，为减少NSSI行为成瘾提供参考。方法 纳入2024年9月—2025年11月在厦门市仙岳医院门诊就诊及住院治疗的青少年女性抑郁障碍患者652例，均符合《国际疾病分类（第10版）》（ICD-10）F32抑郁发作或F33复发性抑郁障碍诊断标准。采用自制一般资料调查表、屏幕使用问卷、中国家庭评估测量工具（C-FAI）和渥太华自我伤害调查表中文修订版（OSIC）进行调查。对于存在NSSI行为者，采用Spearman相关分析检验屏幕使用时间与量表评分之间的相关性。采用SPSS 26.0插件Process 4.1中的模型4进行作用路径分析，通过Bootstrap法重复抽样5 000次检验中介效应。结果 在652例患者中，存在NSSI行为者569例（87.27%）。其中成瘾性NSSI组398例（69.95%），非成瘾性NSSI组171例（30.05%）。伴NSSI行为的青少年女性抑郁障碍患者OSIC成瘾维度评分与屏幕使用时间、C-FAI评分均呈正相关（r_s=0.114、0.224,P均<0.01）。家庭功能失调是屏幕使用时间与NSSI行为成瘾之间的作用路径，间接效应值为0.036(95%CI:0.016～0.062)，占总效应的35.88%。结论 屏幕使用时间可能通过家庭功能失调影响青少年女性抑郁障碍患者NSSI行为成瘾。更多还原

【Abstract】 Background Addictive non-suicidal self-injury(NSSI) behaviors among adolescents have become increasingly prominent, although previous studies have identified multiple related risk factors and have examined the association between screen time and NSSI behaviors, the impact of screen time on NSSI behaviors addiction, as well as the mediating role of family dysfunction in this relationship, remain to be further clarified.Objective To investigate the mediating role of family dysfunction in the relationship between screen time and NSSI behaviors addiction among adolescent female patients with depression disorder, with the aim of providing references for reducing NSSI behaviors addiction.Methods From September 2024 to November 2025, a total of 652 adolescent female patients with depression disorder were enrolled from both outpatient and inpatient departments of Xiamen Xian-yue Hospital, all of whom met the diagnostic criteria for depressive episode(F32) or recurrent depressive disorder(F33) according to the International Classification of Diseases, tenth edition(ICD-10). Assessments included a self-developed demographic questionnaire, screen use questionnaire, Chinese Family Assessment Instrument(C-FAI), and Ottawa Self-injury Inventory Chinese Revised version(OSIC). Among participants with NSSI behaviors, Spearman correlation analysis was used to examine the correlation between screen time and scale scores. Model 4 of the Process 4. 1 for SPSS 26. 0 was then applied to test the mediating role, and Bootstrapping procedure involving 5 000 replicates was employed to confirm the statistical significance.Results Among the 652 patients, 569(87. 27%) exhibited NSSI behaviors. Among them, 398 cases(69. 95%) belonged to the addictive NSSI group, and 171 cases(30. 05%) belonged to the non-addictive NSSI group. The OSIC addiction dimension score was positively correlated with screen time and C-FAI scores(r_s=0. 114, 0. 224, P<0. 01). Family dysfunction mediated the relationship between screen time and NSSI addiction, with an indirect effect value of 0. 036(95% CI: 0. 016–0. 062), accounting for 35. 88% of the total effect.Conclusion Screen time may affect the NSSI behaviors addiction in adolescent female patients with depression disorder through family dysfunction.更多还原