Table 3.
Feature importance of random forest regression
| Variables | Feature importance (%) |
|---|---|
| Loneliness |
26.30 |
| Problematic Internet use |
15.60 |
| Depression symptoms |
14.20 |
| Self-rated health status |
8.60 |
| Family health |
8.40 |
| Anxiety symptoms |
6.10 |
| Family communication |
5.80 |
| Health literacy |
3.30 |
| Age |
3.00 |
| Sleep quality |
2.80 |
| Neuroticism |
1.30 |
| Sleep time |
1.10 |
| Agreeableness |
0.90 |
| Conscientiousness |
0.60 |
| Openness |
0.30 |
| Extraversion |
0.30 |
| Family social status |
0.30 |
| Have a spouse |
0.20 |
| Career status |
0.20 |
| Education level |
0.20 |
| Drinking alcohol |
0.10 |
| Gender |
0.10 |
| Medical insurance type |
0.10 |
| Family per capita monthly income |
0.10 |
| Smoking status |
0 |
| Urban-rural distribution | 0 |