Risk assessment by client and case manager for shared decision making in outpatient forensic psychiatry

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BackgroundIn outpatient forensic psychiatry, assessment of re-offending risk and treatment needs by case managers may be hampered by an incomplete view of client functioning. The client’s appreciation of his own problem behaviour is not systematically used for these purposes. The current study tests whether using a new client self-appraisal risk assessment instrument, based on the Short Term Assessment of Risk and Treatability (START), improves the assessment of re-offending risk and can support shared decision making in care planning.MethodsIn a sample of 201 outpatient forensic psychiatric clients, feasibility of client risk assessment, concordance with clinician assessment, and predictive validity of both assessments for violent or criminal behaviour were studied.ResultsAlmost all clients (98 %) were able to fill in the instrument. Agreement between client and case manager on the key risk and protective factors of the client was poor (mean kappa for selection as key factor was 0.15 and 0.09, respectively, and mean correlation on scoring −0.18 and 0.20). The optimal prediction model for violent or criminal behaviour consisted of the case manager’s structured professional risk estimate for violence in combination with the client’s self-appraisal on key risk and protective factors (AUC = 0.70; 95%CI: 0.60–0.80).ConclusionsIn outpatient forensic psychiatry, self-assessment of risk by the client is feasible and improves the prediction of re-offending. Clients and their case managers differ in their appraisal of key risk and protective factors. These differences should be addressed in shared care planning. The new Client Self-Appraisal based on START (CSA) risk assessment instrument can be a useful tool to facilitate such shared care planning in forensic psychiatry.Electronic supplementary materialThe online version of this article (doi:10.1186/s12888-015-0500-3) contains supplementary material, which is available to authorized users.