Table 2.

Prevalence Adolescent Offending Per Age Block

	Prevalence of adolescent offending
	n	Early 12–14 years	Middle 15–17 years	Late 18–19 years	Proportion of sample %
Persisters (n = 212)	84	X	X	X	68.4
	6a	–	X	X
	14	X	–	X
	108	X	X	–
Desisters (n = 63)	29	–	–	–	20.3
	34b	X	–	–
Intermittent (n = 35)	25	–	X	–	11.3
	7	–	–	X
	3a	–	X	X

23 boys were left out of the classification because of too much missing data

^aBoys who did not offend in both late childhood and early adolescence were not classified as persisters but as intermittent offenders

^bSix of these children had offended in middle childhood and early adolescence and not in late childhood. One could argue these children are in fact intermittent offenders. However, the fact that they did not show offending behavior in the following two adolescent age blocks made us decide to regard them as desisters