Table 3 Results of the mediation analysis (depression symptoms as dependent variable)
Variables | Model 1 (depression symptoms) | Model 2 (self-control) | Model 3 (depression symptoms) | |||
|---|---|---|---|---|---|---|
β | t | β | t | β | t | |
Age | 0.063*** | 3.465 | −0.103*** | -4.813 | -0.032 | 1.849 |
Gender | 0.129*** | 7.041 | −0.046* | -2.143 | 0.115*** | 6.710 |
Ethnicity | -0.027 | -1.517 | 0.001 | 0.047 | -0.027 | -1.607 |
Single child status | -0.001 | -0.023 | −0.006 | -0.257 | -0.002 | -0.123 |
Parental married status | 0.012 | 0.646 | 0.012 | 0.518 | 0.016 | 0.891 |
Family incomes | 0.017 | 0.936 | −0.004 | -0.209 | 0.015 | 0.992 |
Father’s educational level | -0.006 | -0.300 | 0.007 | 0.294 | -0.004 | -0.208 |
Father’s job stability | 0.004 | 0.233 | −0.010 | -0.449 | 0.001 | 0.076 |
Mother’s educational level | -0.019 | -0.882 | 0.003 | 1.001 | -0.011 | -0.560 |
Mother’s job stability | 0.002 | 0.099 | 0.001 | 0.012 | 0.002 | 0.111 |
Left-behind status | -0.040* | -2.097 | 0.063** | 0.790 | -0.021 | -1.170 |
Immigrants’ second generation | 0.021 | 1.147 | −0.016 | -0.734 | 0.016 | 0.946 |
Local resident | -0.000 | -0.007 | 0.022 | 1.000 | 0.007 | 0.377 |
Degree of impact by COVID-19 on life | 0.025 | 1.404 | −0.023 | -1.108 | 0.018 | 1.077 |
Family history of psychiatric illness | -0.029 | -1.657 | 0.005 | 0.263 | -0.028 | -1.674 |
Self history of psychiatric illness | -0.047** | -2.670 | 0.048* | 2.288 | -0.033* | -1.976 |
Chronic physical illness | -0.047** | -2.654 | 0.031 | 1.521 | -0.037* | -2.256 |
Exercise | -0.032 | -1.728 | 0.129*** | 5.911 | 0.007 | 0.420 |
Smoking | 0.031 | 1.665 | −0.023 | -1.082 | 0.023 | 1.367 |
Alcohol intake | 0.146*** | 7.874 | −0.132*** | -6.072 | 0.106*** | 6.039 |
Sleep disturbance | 0.543*** | 29.557 | −0.316*** | -14.659 | 0.446*** | 24.633 |
Self-control | - | - | - | - | -0.306*** | -16.568 |
R2 | 0.434 | 0.221 | 0.507 | |||
F | 67.61 | 25.09 | 86.54 | |||