| Characteristic | Total N (%) | Statistic | P | |||
| Alcohol n (%) | Drugs n (%) | Controls n (%) | ||||
| Marital status of the parents | F2,257=24,544 | 0.001** | ||||
| Single | 4 (3) | 4 (8) | 2 (2) | 10 (3) | ||
| Married/steady partner | 94 (71) | 24 (48) | 84 (69) | 202 (66) | ||
| Divorced/separated | 31 (23) | 21 (42) | 32 (26) | 84 (27.5) | ||
| Widower | 4 (3) | 1 (2) | 4 (3) | 9 (3) | ||
| Socioeconomic status | F2,257=13,282 | 0,056 | ||||
| B | 4 (3) | 2 (4) | 3 (2,5) | 9 (3) | ||
| C | 32 (24) | 7 (14) | 43 (35) | 82 (27) | ||
| D | 90 (68) | 39 (78) | 74 (61) | 203 (66,5) | ||
| E | 7 (5) | 2 (4) | 2 (1,5) | 11 (3,5) | ||
| Age of the parents, mean ± SD | ||||||
| 39.06 ± 11.6 | 35.03 ± 9.8 | 37.02 ± 10.6 | F2,257=13,695 | 0,255 | ||
| Total | 133 (100) | 50 (100) | 122 (100) | 305 (100) | ||
| Sex of the child | ||||||
| Male | 66 (50) | 32 (64) | 62 (51) | 160 (52) | 0.203 3,218 |
|
| Female | 67 (50) | 18 (36) | 60 (49) | 145 (48) | ||
| Age of the child, average ± SD | F2,257=5,076 | 0.007** | ||||
| 10.38 ± 4.2 | 8.44 ± 3.4 | 10.30 ± 4.2 | ||||
| Child’s education level | F2,257=23,396 | 0.013* | ||||
| Illiterate | 4 (3) | 0 (0) | 13 (11) | 17 (6) | ||
| Preschool | 28 (21) | 17 (34) | 18 (15) | 63 (21) | ||
| < 9 years of schooling | 66 (50) | 29 (58) | 54 (44) | 149 (49) | ||
| 149 (49) 9 years of schooling | 9 (7) | 1 (2) | 9 (7) | 19 (6) | ||
| High school (incomplete) | 20 (15) | 3 (6) | 22 (18) | 45 (15) | ||
| High school (complete) | 3 (2) | 0 (0) | 3 (2.5) | 6 (2) | ||
| Unknown | 3 (2) | 0 (0) | 3 (2.5) | 6 (2) | ||
| Total | 133 (100) | 50 (100) | 122 (100) | 305 (100) | ||