82 Chapter 3 2000). The SRD will be measured at baseline and 12 and 18 months after baseline assessment. Additionally, information about the type, number, severity and time of arrests and offenses will be collected from the International Police Information Service (IPOL) and the Justice Documentation System (JDS) of the Dutch Ministry of Safety and Justice (Wartna, 2009). We will collect data from these records at 12 and 36 months after baseline assessment. Furthermore, the number of renewed incarcerations will be monitored throughout the study. We will ask participants whether and how frequently they have been incarcerated at all assessments. The number of incarcerations during the study will also be gathered from electronic patient files. Other secondary outcome measures Substance abuse Two chapters of the Measurement in the Addictions for Triage and Evaluation (MATE 2.1) (Schippers, Broekman, & Buchholz, 2011) will be used for the assessment of alcohol and drug use as well as alcohol and drug abuse or dependency according to the DSM-IV-TR. Chapter one of the MATE 2.1 will be assessed at baseline and 3, 6, 9, 12 and 18 months after baseline, to measure the prevalence, frequency and average amount of an extensive list of substances (e.g., nicotine, alcohol, tranquillizers, drugs) in the last 30 days. In addition, the onset and duration of frequent substance use and the primary, secondary and tertiary problematic substances can be determined. Chapter four of the MATE 2.1 consists of 11 questions (yes/no) that can be used to determine alcohol and drug abuse or dependency in the past 12 months. Therefore, chapter four will be assessed at baseline, and 12 and 18 months after baseline. The MATE 2.1 has acceptable validity and reliability scores (Schippers, Broekman, Buchholz, Koeter, & van den Brink, 2010). Quality of life Quality of life will bemeasured with the Dutch version of theManchester Short Assessment of Quality of Life (MANSA), a 16-item 7-point Likert-type self-report questionnaire (Priebe et al., 1999; van Nieuwenhuizen, Schene, & Koeter, 2000). The MANSA consist of 12 Likert-type questions that are related to important domains of life such as physical health, mental health, safety, social relationships, leisure activities, work, and finance. Additionally, four yes/no-questions regarding victimization, delinquent behavior and friendships are included. The English version of the questionnaire demonstrated adequate psychometric properties (Priebe et al., 1999). The MANSA will be measured at baseline, and 3, 6, 9, 12 and 18 months after baseline assessment.
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