Static-99 — MRCPsych Paper B MCQ
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Correct answer: B — Static-99
Static-99 is the correct answer. It is a 10-item actuarial instrument based on historical and demographic factors, developed to estimate long-term sexual recidivism risk in adult men convicted of sexual offences. The PCL-R is a 20-item assessment of psychopathic traits rather than a sexual-recidivism instrument. The HCR-20 is a structured professional judgement framework for adult violence risk. SAPROF assesses protective factors and is generally used alongside a risk-focused instrument. SAVRY is a structured professional judgement tool for violence risk in adolescents. Static-99 therefore uniquely matches the stem's combination of actuarial methodology, 10-item structure, adult male population and sexual-recidivism outcome.
Reference: Fazel S, Singh JP, Doll H, Grann M. Use of risk assessment instruments to predict violence and antisocial behaviour in 73 samples involving 24,847 people: systematic review and meta-analysis. BMJ. 2012;345:e4692, Table 1. https://blogs.bmj.com/ebmh/files/2014/08/bmj.e4692.pdf