Table 2.
Variables and descriptive Statistics.
| Variable | Description | Mean | SD | Min | Max |
|---|---|---|---|---|---|
| Mental health | Adolescents’ mental health | 3.830 | 0.799 | 1 | 5 |
| Fss | Family socioeconomic status of adolescents, which is composed of three aspects: family income, parents’ education level and parents’ occupation. | 2.695 | 0.766 | 1 | 5 |
| Income | Family income, which is from the question “what do you think of your family’s current financial level?” | 2.957 | 0.599 | 1 | 5 |
| Education | Parents’ education level (data from parents’ questionnaire) | 2.718 | 1.152 | 1 | 5 |
| Occupation | Parents’ occupation (data come from the parents’ questionnaire) | 2.506 | 0.977 | 1 | 5 |
| Type | Registered residence type | 0.467 | 0.499 | 0 | 1 |
| Confidence | What do you think of your appearance? | 3.081 | 0.664 | 1 | 5 |
| Diet | Unhealthy diet | 2.779 | 0.728 | 1 | 5 |
| Relationship | Parent-child relationship | 2.616 | 0.452 | 1 | 3 |
| Communication | Parent-child communication | 2.230 | 0.536 | 1 | 3 |
| Strictness | Parental strictness | 2.315 | 0.394 | 1 | 3 |
| Contact | Parents’ active contact with teachers | 2.345 | 1.012 | 1 | 4 |
| Atmosphere | School atmosphere: “most of the students in my class are very friendly to me.” my class has a good atmosphere.” “ I often take part in the work organized by the school or the class.” | 3.063 | 0.678 | 1 | 4 |
| Course | Health course: Did you take a health education class when you were in primary school? | 0.646 | 0.478 | 0 | 1 |
| Effect | Positive effect of good friends | 2.456 | 0.521 | 1 | 3 |
| Classmate | Classmate interaction frequency | 2.288 | 1.237 | 1 | 6 |
| Parent-child | Parent-child interaction frequency | 2.296 | 1.141 | 1 | 6 |
Note: Based on CEPS from 2014 to 2015.