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Multivariable logistic regression analysis of content type of smartphone use, for smartphone overuse (more than 5 h per day).
| Content Type | Crude OR | Adjusted OR |
|---|---|---|
| OR (95% CI) | OR (95% CI) | |
| Study | Ref. | Ref. |
| SNS | 4.67 (4.32–5.05) | 4.57 (4.20–4.98) |
| Game | 2.22 (2.04–2.40) | 2.24 (2.05–2.45) |
| Entertainment | 2.68 (2.49–2.88) | 2.60 (2.40–2.81) |
* Adjustment for age, sex, region of residence, family economic status, sleep hours, and physical activity; SNS: Social-Networking Services, OR: odds ratio
