Table 2.
Correlation coefficients of study variables.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. Age | 1 | ||||||||||||
| 2. Gender | 0.02 | 1 | |||||||||||
| 3. Heigh | 0.45 ** | 0.10 | 1 | ||||||||||
| 4. Weigh | 0.41 ** | 0.01 | 0.66 ** | 1 | |||||||||
| 5. BMI | 0.16 * | −0.08 | 0.06 | 0.73 ** | 1 | ||||||||
| 6. Only Child | −0.10 | 0.04 | 0.05 | 0.05 | 0.05 | 1 | |||||||
| 7. Parental Education | −0.08 | −0.04 | 0.02 | −0.08 | −0.07 | 0.05 | 1 | ||||||
| 8. Parental Income | −0.13 | 0.02 | −0.17 * | −0.13 | −0.02 | 0.07 | 0.21 ** | 1 | |||||
| 9. LPA | 0.19 * | 0.02 | 0.15 | 0.08 | 0.00 | −0.07 | 0.14 | −0.02 | 1 | ||||
| 10. MVPA | 0.12 | 0.14 | 0.12 | 0.03 | −0.04 | 0.01 | 0.02 | −0.06 | 0.55 ** | 1 | |||
| 11. TPA | 0.17 * | 0.09 | 0.16 * | 0.07 | −0.03 | −0.05 | 0.10 | −0.06 | 0.93 ** | 0.80 ** | 1 | ||
| 12. EF | −0.07 | 0.08 | −0.06 | 0.01 | 0.06 | 0.04 | −0.07 | 0.05 | −0.53 ** | −0.61 ** | −0.64 ** | 1 | |
| 13. SP | −0.15 | 0.13 | −0.11 | −0.10 | −0.02 | 0.16 * | 0.00 | 0.14 | −0.27 ** | −0.29 ** | −0.31 ** | 0.47 ** | 1 |
*p < 0.05, **p < 0.01, ***p < 0.001. BMI, Body Mass Index; LPA, Light Physical Activity; MVPA, Moderate-to-Vigorous Physical Activity; TPA, Total Physical Activity; EF, Total Executive Function Scores; SP, Total Sleep Problems Scores. Higher scores on the executive function and sleep problem measures indicate greater impairment. Therefore, lower scores reflect better executive function and fewer sleep-related problems. Values are Pearson correlation coefficients. Variables in the rows and columns are identical, as both represent the same set of variables in the correlation analysis.