Table 2. Area under the ROC curve analysis of the App-generated parameters used for problematic smartphone-use diagnosis.
| App-generated parameters | Diagnostic interview AUC (95% CI) | P-value | App-assisted diagnosis AUC (95% CI) | P-value |
|---|---|---|---|---|
| Non-use frequency | 0.632 (0.505–0.760)* | 0.048 | 0.704 (0.577–0.830)* | 0.003 |
| Non-use duration | 0.634 (0.511–0.758)* | 0.045 | 0.705 (0.591–0.819)* | 0.003 |
| Non-use-median | 0.656 (0.533–0.778)* | 0.020 | 0.707 (0.587–0.828)* | 0.002 |
| RMSSD | 0.648 (0.523–0.773)* | 0.027 | 0.721 (0.597–0.848)* | 0.001 |
| Similarity Index | 0.653 (0.530–0.777)* | 0.022 | 0.734 (0.617–0.851)* | 0.001 |
Abbreviations: AUC, area under the curve; CI, confidence interval; RMSSD, root mean square of the successive differences; ROC, receiver operating characteristic.
*P-value<0.05