Table 2.
Correlation analysis of physical activity, screen time, and academic burden.
| Variable | 1 | 2 | 3 | 4 | 5 | 6 |
|---|---|---|---|---|---|---|
| Physical activity | ||||||
| 1. Exercise time/day | 1.000 | |||||
| 2. Housework time/day | −0.014 | 1.000 | ||||
| Screen time | ||||||
| 3. TV watching time/day | −0.005 | 0.122 *** | 1.000 | |||
| 4. Online and game time/day | 0.071 *** | −0.015 | 0.395 *** | 1.000 | ||
| Academic burden | ||||||
| 5. School study time/day | 0.064 *** | 0.022 ** | −0.003 | 0.011 | 1.000 | |
| 6. Off campus study and homework time/day | 0.087 *** | −0.015 | −0.021 * | 0.010 | 0.907 *** | 1.000 |
Note: *** p < 0.01, ** p < 0.05, * p < 0.1.