Table 1.

Descriptive statistics and mean scores for independent and dependent variables in each wave (N = 563).

Wave	2	3	4	5	6	Mean stability correlation
Average age	11.94	12.95	15.15	15.98	16.96	-
Sample size	563	563	563	563	563	-
Antisocial behaviour (%)	11.72	14.83	21.77	21.53	18.66	-
Mean scores
Antisocial behaviour	1.04	1.04	1.10	1.10	1.10	.48
Hyperactivity/impulsivity	1.87	2.02	2.26	2.28	-	.56
Low academic performance	1.73	1.79	1.94	2.02	2.08	.62
Depressive symptoms	1.41	1.46	1.53	1.58	1.60	.57
Poor family management	1.38	1.48	1.82	1.87	1.97	.58
Low attachment to parents	1.58	1.73	1.99	1.98	2.04	.60
Low involvement in family activities	1.57	1.62	1.91	1.89	1.92	.58
Family conflict	1.86	1.91	2.17	2.21	2.21	.55
High neighbourhood disorganisation	1.31	1.35	1.48	1.49	1.49	.57
Peer delinquency	.10	.14	.31	.34	.30	.42

Note: Mean stability based on spearman correlations.