Table 1 Descriptive statistics of major variables
Variables | Meaning/value | Obs | Mean (%) | SD | Min | Max |
|---|---|---|---|---|---|---|
Dependent variables | ||||||
Self-rated health | Five-category variable | 6516 | 3.876 | 0.922 | 1 | 5 |
Illness frequency | Three-category variable | 6516 | 1.969 | 0.448 | 1 | 3 |
Sick leave days | Continuous variable | 6516 | 1.766 | 4.980 | 0 | 115 |
Depression | Same as above | 6516 | 21.73 | 7.995 | 10 | 50 |
Explanatory variables | ||||||
Financial investment | Add 1 to take logarithm | 6516 | 6.649 | 1.248 | 0 | 8.380 |
Individual characteristics | ||||||
Age | Continuous variable | 6516 | 13.90 | 0.859 | 12 | 17 |
Gender | 1, boy; 0, girl | 6516 | 0.521 | 0.500 | 0 | 1 |
Hukou | 1,agriculture; 0,nonagriculture | 6516 | 0.528 | 0.499 | 0 | 1 |
Cognitive ability | Three-category variable | 6516 | 2.046 | 0.810 | 1 | 3 |
Love | 1, yes; 0, no | 6516 | 0.114 | 0.318 | 0 | 1 |
Family characteristics | ||||||
Parental marital status | 1, married; 0, not married | 6516 | 0.925 | 0.263 | 0 | 1 |
Only child | 1, yes; 0, no | 6516 | 0.442 | 0.497 | 0 | 1 |
Whether parents quarrel | Same as above | 6516 | 0.098 | 0.298 | 0 | 1 |
Mother's education | Years | 6516 | 3.360 | 1.194 | 1 | 7 |
Family economic status | Five-category variable | 6516 | 2.937 | 0.599 | 1 | 5 |
Community characteristics | ||||||
Health environment | Four-category variable | 6516 | 2.786 | 0.624 | 1 | 4 |
School characteristics | ||||||
School level | Five-category variable | 6516 | 4.033 | 0.799 | 2 | 5 |