Siblings (n = 21), median score (range) | Siblings (n = 20), median score (range) | Controls (n = 287), median score(range) | p Value | |||
---|---|---|---|---|---|---|
At first assessment (I) | At second assessment (II) | I v control | II v control | I v II | ||
Higher scores indicate more negative behaviour. | ||||||
Conners’ | ||||||
Conduct problems | 4 (0–21) | 6 (0–24) | 2 (0–18) | 0.002 | 0.002 | 0.60 |
Learning problems | 1 (0–7) | 1.5 (0–9) | 0 (0–8) | 0.105 | 0.002 | 0.63 |
Psychosomatic problems | 1 (0–7) | 1.5 (0–5) | 0 (0–11) | 0.072 | 0.004 | 0.96 |
Impulsive-hyperactive | 3 (0–13) | 4 (0–11) | 2 (0–13) | 0.054 | 0.013 | 0.68 |
Anxiety | 1 (0–5) | 1 (0–5) | 0 (0–5) | 0.477 | 0.417 | 0.96 |
Other behavioural problems | 0 (0–3) | 0.5 (0–3) | 0 (0–2) | <0.001 | <0.001 | 0.89 |