期刊
JOURNAL OF AFFECTIVE DISORDERS
卷 299, 期 -, 页码 416-424出版社
ELSEVIER
DOI: 10.1016/j.jad.2021.12.013
关键词
Bidirectional association; Common vulnerability; Cross-lagged panel model; Depression; Internet addiction
资金
- National Natural Science Foundation [81,571,305]
- Department of Science and Technology of Sichuan provincial government [2019YFS0153]
- 1.3.5'' project for disciplines of excellence, West China Hospital, Sichuan University [ZY2016203, ZY2016103]
- Introduction Project of Suzhou Clinical Expert Team [SZYJTD201715]
This study surveyed 12,043 undergraduates on Internet addiction and depression, finding an association between the two. Baseline depression predicted follow-up Internet addiction, and baseline Internet addiction predicted follow-up depression.
Background: Internet addiction (IA) is associated with adverse consequences, especially for younger people. Evidence indicates that IA is associated with depression, but no studies have yet investigated potential common vulnerability between them. Methods: IA (measured by the Young's 20-item Internet Addiction Test Scale) and depressive symptoms (measured by the Patient Health Questionnaire-9 Scale) among 12 043 undergraduates were surveyed at baseline and at a respective 12 month follow-up for each participant. Application of a cross-lagged panel model approach (CLPM) revealed an association between IA and depression after adjusting for demographic variables. Results: Rates of baseline IA and depression were 5.47% (95% CI: 5.07%, 5.88%) and 3.85% (95% CI: 3.51%, 4.20%), respectively; increasing to 9.47% (95% CI: 8.94%, 9.99%) and 5.58% (95% CI: 5.17%,5.99%), respectively, at follow-up. Rates of new-incidences of IA and depression over 12 months were 7.43% (95% CI: 6.95%, 7.91%) and 4.47% (95% CI: 4.09%, 4.84%), respectively. Models in the present analysis revealed that baseline depression had a significant net-predictive effect on follow-up IA, and baseline IA had a significant netpredictive effect on follow-up depression. Limitations: The follow-up survey response rate was moderate (54.69%) in this analysis of university students. Moreover, the IAT-20 scale did not allow differentiate between specific forms of Internet activity. Conclusions: Common vulnerability and bidirectional cross-causal effects may both contribute to the association between IA and depression, with common vulnerability likely playing a more significant role than cross-causal effects.
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