Table 1. Sample characteristics 2006* DOI data.

	General recidivism	Violent recidivism	Sexual recidivism
Total n	20,000	20,000	2,058
average observation time in months	58.8	71.6	80.7
% experiencing event	44.8	28.7	4.1
4 year base rate (%)	37.7	22.6	3.1
Gender: female(%)	15.6	10.3	-
Age in years (mean)	35.8	34.8	39.5
Age of first conviction (mean)	27.9	25.5	31.2
Most serious offence type (%)
Violence	14.5	100.0	0.5
Sexual	0.7	0.5	97.6
Property with violence	1.2	1.2	0.8
Property without violence	22.7	4.2	0
Public order	10.3	13.8	0
Drug offence	6.9	1.0	0
Motoring offence	30.8	1.5	0
Misc. offence	13.0	6.3	1.0
Country of birth (%)
Netherlands	71.7	72.0	73.6
Morocco	2.8	3.9	2.7
Neth. Antilles/Aruba	2.7	3.5	3.2
Surinam	4.5	5.0	4.5
Turkey	3.0	3.7	2.2
Other Western countries	8.1	4.9	5.6
Other non-Western countries	7.2	7.0	8.2
Offence type present in index case (%)
Violence component (0/1)	15.9	100.0	12.6
Sexual component	0.7	0.5	100.0
Property with violence	1.2	1.2	1.7
Property without violence	23.3	4.2	3.1
Public order	13.0	13.8	6.2
Drug offence	8.2	1.0	0.9
Motoring offence	31.5	1.5	0.3
Misc. offence	15.1	6.3	9.4
Criminal history counts (mean)
Conviction density	0.4	0.5	0.3
Number of previous convictions	4.4	5.4	3.7
Previous violent offences	0.5	1.0	0.5
Previous sexual offences	0.0	0.0	0.2
Previous property with
violence offences	0.1	0.2	0.2
Previous property offences	2.3	2.4	1.5
Previous public order offences	0.6	1.0	0.6
Previous drug offences	0.2	0.2	0.1
Previous motoring offences	0.8	0.8	0.6
Previous misc. offences	0.3	0.4	0.3
Previous prison terms	0.9	1.0	0.7
Previous community service orders	0.3	0.5	0.3
Previous fines	0.9	1.2	0.8
Previous PPDs†	0.5	0.5	0.3

Note: The sexual recidivism data also contain data from 2007, to enlarge the sample size.

^†Public prosecutor's disposals.