Reciprocal relationship among perceived sleep quality, smartphone overdependence, and depression in Korean adolescents: a cross-lagged analysis using national big data
Won-Oak Oh, Yoo-Jin Heo · 2025
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Description
Oh and Heo trace how sleep, smartphone overuse, and depression influence each other over time in Korean teenagers, in a 2025 study. They followed 2,052 adolescents through three yearly waves of a national panel survey, using a statistical model that lets each factor predict the others later.
Poor perceived sleep consistently came first, forecasting later smartphone overdependence and more depressive symptoms. Depression also fed back, predicting worse sleep afterward, while the smartphone link ran mainly through sleep. The authors argue sleep is the central lever: improving it could interrupt the cycle, and they suggest the findings should shape youth mental health policy.
Catalog record
| CREATOR | Won-Oak Oh, Yoo-Jin Heo |
|---|---|
| YEAR | 2025 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 33 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |