Characteristics of the siblings
| Variable | Male n = 86 (%) | Female n = 101 (%) |
|---|---|---|
| Mean age (SD) | 10 (5) | 10 (5) |
| Living at home (%) | 78 (90) | 72 (71) |
| Studying (%) | 65 (77) | 67 (68) |
| Underachievement in school | 38 (44) | 32 (32) |
| Education (%) | ||
| Alfa | 9 (10) | 8 (8) |
| Elementary | 53 (62) | 48 (47) |
| Primary | 8 (9) | 19 (19) |
| Secondary | 0 | 5 (5) |
| Unknown | 16 (19) | 21 (21) |
| Working (%) | 22 (25) | 12 (12) |
| Working hours/day, mean (SD) | 7.2 (2.2) | 8.1 (2.1) |