Shandong University of Traditional Chinese Medicine, Jinan, China.
Xiangya School of Public Health, Central South University, Changsha, China.
Front Public Health. 2022 Apr 27;10:857246. doi: 10.3389/fpubh.2022.857246. eCollection 2022.
A previous cross-sectional study found that problematic mobile phone use (PMPU) was associated with students' eating disorder symptoms. However, since the cross-sectional study cannot infer the causality and the direction of effect, the longitudinal relationship between the two and the mechanism behind this relationship are unclear. Therefore, the present study explores the prospective association between PMPU and eating disorder symptoms and related mediation mechanisms using a 1-year longitudinal study of 1,181 college students (from December 2019 [T1] to December 2020 [T2]). Survey tools used include the Mobile Phone Addiction Tendency Scale, the 10-item Connor-Davidson resilience scale, and the 12 item Short Form of the Eating Disorder Examination Questionnaire. The longitudinal relationship between PMPU and eating disorder symptoms and the mediating effect of resilience was analyzed using a cross-lagged model. The results showed that PMPU (β = 0.086, < 0.01) and resilience (β = -0.145, < 0.01) at T1 predicted eating disorder symptoms at T2, but not vice versa. PMPU was bidirectionally associated with resilience, and the prediction effect of PMPU at T1 to resilience at T2 (β = -0.151, < 0.001) was higher than the prediction effect of resilience at T1 to PMPU at T2 (β = -0.134, < 0.001). The standardized indirect effect of PMPU at T1 on eating disorder symptoms at T2 resilience was significant (β = 0.022, 95% = 0.010~0.040, < 0.001). Therefore, PMPU and resilience were predictive for eating disorder symptoms in college students, and resilience may play a mediating role in the prospective association between PMPU and eating disorder symptoms. This study provides new ideas and higher-level evidence for the development of prevention and intervention measures for college students' eating disorder symptoms.
一项先前的横断面研究发现，问题手机使用（PMPU）与学生的饮食障碍症状有关。然而，由于横断面研究不能推断因果关系和效应的方向，因此两者之间的纵向关系和这种关系背后的机制尚不清楚。因此，本研究使用一项对 1181 名大学生进行的为期 1 年的纵向研究（2019 年 12 月[T1]至 2020 年 12 月[T2]），探讨 PMPU 与饮食障碍症状之间的前瞻性关联及其相关中介机制。使用的调查工具包括手机成瘾倾向量表、10 项 Connor-Davidson 韧性量表和 12 项饮食障碍检查问卷短表。使用交叉滞后模型分析 PMPU 与饮食障碍症状之间的纵向关系和韧性的中介效应。结果表明，T1 时的 PMPU（β=0.086，<0.01）和韧性（β=-0.145，<0.01）预测了 T2 时的饮食障碍症状，但反之则不然。PMPU 与韧性呈双向关联，T1 时 PMPU 对 T2 时韧性的预测效应（β=-0.151，<0.001）高于 T1 时韧性对 T2 时 PMPU 的预测效应（β=-0.134，<0.001）。T1 时 PMPU 对 T2 时饮食障碍症状的标准化间接效应通过韧性显著（β=0.022，95%置信区间=0.010~0.040，<0.001）。因此，PMPU 和韧性是大学生饮食障碍症状的预测因素，韧性可能在 PMPU 与饮食障碍症状之间的前瞻性关联中发挥中介作用。本研究为大学生饮食障碍症状的预防和干预措施的制定提供了新的思路和更高层次的证据。
