Table 1.
Participant characteristics
| N | % | |
|---|---|---|
| Sex | ||
| Male | 296 | 49.0 |
| Female | 308 | 51.0 |
| Family composition | ||
| Single-parent household | 44 | 7.3 |
| Two-parent household | 560 | 92.7 |
| Annual household income (¥) | ||
| < 3,000,000 | 46 | 7.7 |
| 3,000,000–6,000,000 | 246 | 41.4 |
| 6,000,000–9,000,000 | 169 | 28.5 |
| ≥ 9,000,000 | 133 | 22.4 |
| Mother’s educational background | ||
| Middle school or high school | 109 | 18.2 |
| Junior college or vocational school | 241 | 40.2 |
| University or graduate school | 249 | 41.6 |
| Father’s educational background | ||
| Middle school or high school | 140 | 24.0 |
| Junior college or vocational school | 76 | 13.0 |
| University or graduate school | 367 | 63.0 |