Table 1.
Socio-demographic characteristics of college students
| Characteristic | Number | Percent（%） |
|---|---|---|
| Ethnic | ||
| Han | 851 | 92.3 |
| Others | 71 | 7.7 |
| Gender | ||
| Men | 447 | 48.5 |
| Women | 475 | 51.5 |
| Age | ||
| 16–17 | 178 | 19.3 |
| 18–19 | 662 | 71.8 |
| ≥20 | 82 | 8.9 |
| BMI* | ||
| Thin | 72 | 7.8 |
| Normal | 713 | 77.3 |
| Overweight | 107 | 11.6 |
| Obesity | 26 | 2.8 |
| Being the only child | ||
| Yes | 295 | 32.1 |
| No | 625 | 67.9 |
| Yearly family income | ||
| Low | 37 | 4.0 |
| Average | 442 | 48.0 |
| High | 441 | 48.0 |
| History of family mental illness | ||
| Yes | 64 | 7.0 |
| No | 856 | 93.0 |
| IGD | ||
| Yes | 50 | 5.5 |
| No | 862 | 94.5 |
Note: IDG = Internet Gaming Disorder.
*Different gender using different criteria.