Proefschrift

4 88 CHAPTER 4 This includes contact sexual offenses but excludes noncontact sexual offenses. Data were excluded from analysis if gender was not specified (DSP n = 8; BC n = 5) or when data on at least one dynamic risk factor were missing (DSP n = 7; BC n = 642). The final samples used for construction of the networks consisted of 788 (DSP) and 3,864 (BC) adult men. Recidivism data were available for 611 (DSP) and 3,863 (BC) adult men. Table 4.1 provides detailed descriptions and statistical comparisons of the independent samples (see Table 4.2, for the subsample with recidivism). Although the groups did not differ in total scores of the STATIC-99R (Helmus et al., 2012), an actuarial risk assessment instrument concerning static risk factors (e.g., age at first offense, number and type of offenses, gender of victims) of adult men with a history of sexual offenses, or the STABLE-2007 (Hanson et al., 2007; see below for a description of this risk assessment instrument), the BC sample had slightly more or higher indicators of antisocial tendencies and sexual deviancy (e.g., prior sentences, nonsexual violence offenses, and relatives as victims). The DSP sample had a fixed follow-up period of 5 years, and the BC sample follow-up period was on average four and a half years. The recidivism rate for sexual recidivism of the DSP sample was higher than that of the BC sample (10.8% vs. 4.7%, respectively), while for violent offenses (including sexual contact), these rates were comparable (20.4% vs. 18.1%, respectively). In summary, these data show that despite statistically significant differences in demographic and risk-relevant variables, resulting from the large sample size, the DSP and BC samples can be considered largely similar. 4.2.2 ASSESSMENT OF DYNAMIC RISK FACTORS Stable dynamic risk factors were assessed using the STABLE- 2007 (see Table 3.1 in Chapter 3), a risk assessment instrument designed to assess and track changes in risk status over time in adult men with a history of sexual offenses (Hanson et al., 2007). The STABLE-2007 has 13 items organized into five subsections (significant social influences, intimacy deficits, sexual self-regulation, general self-regulation, and cooperation with supervision). Each item is scored as 0, 1, or 2 (reflecting no, some, and considerable concern). Total scores range from 0 to 26 for offenders with a victim under 14 years old, and 0–24 for others, because the emotional identification with children item is only scored for the former group. The STABLE-2007 has been found to have moderate accuracy in predicting sexual recidivism (e.g., Brankley et al., 2021). The STABLE-2007 was developed in the original DSP sample by revising its precursor, the STABLE-2000. Three items on offense supportive attitudes of the STABLE-2000 were not included in the STABLE-2007 because they were not significantly related to sexual recidivism (i.e., attitudes tolerant of rape, adult-child sex, and sexual entitlement). Also, items about capacity for relationship stability and sexual deviant interest were revised to incorporate past behavior and the emotional identification with children item was restricted to apply only to offenders with at least one victim less than 14 years

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