OxMIV has been updated so that income is simplified into 2 categories
The baseline risk for violent offending within 12 months for OxMIV (based on a Swedish sample) was 1.4%.
* If one or more of these variables are set to ‘unknown’, a range of risk levels will be displayed.
OxMIV should only be used for individuals with schizophrenia-spectrum and bipolar disorders.
The content of the OxRisk website (including the risk calculators) is accurate according to the opinions of the authors of the calculators. The information and directions may or may not apply to specific individuals considered for assessment. The calculators provide a ‘best guess’ of likely outcomes based on current knowledge, but cannot provide an accurate prediction for each individual. Determination of appropriate application and scoring of the OxRisk calculators to specific cases and in specific jurisdictions requires the judgement of a clinician or criminal justice professional. OxRisk calculators are intended to be an adjunct to clinical decision-making.
Materials on this website are protected by copyright law. Access to the information on this website should be for the sole purpose of personal, educational and research use only. Where appropriate a single print out of a reasonable proportion of these materials may be made for personal education, research and private study. Materials should not be further copied, photocopied or reproduced, or distributed in electronic form. Any unauthorised use or distribution for commercial purposes is expressly forbidden.
Publications
Development and validation
- Fazel S, Wolf A, Larsson H, Lichtenstein P, Mallett S, Fanshawe TR. Identification of low risk of violent crime in severe mental illness with a clinical prediction tool (Oxford Mental Illness and Violence tool [OxMIV]): a derivation and validation study.
Lancet Psychiatry (2017).
Further external validation
- Whiting D et al. Assessing violence risk in first-episode psychosis: external validation, updating and net benefit of a prediction tool (OxMIV).
BMJ Mental Health (2023). - Lamsma J et al. Validation and recalibration of OxMIV in predicting violent behaviour in patients with schizophrenia spectrum disorders.
Scientific Reports (2022).
Feasibility and implementation
- Whiting et al. Use of a violence risk prediction tool (Oxford Mental Illness and Violence) in early intervention in psychosis services: mixed methods study of acceptability, feasibility and clinical role.
The British Journal of Psychiatry (2025).
- Whiting et al. Approaches and challenges to assessing risk of violence in first episode psychosis: A qualitative interview study of clinicians, patients and carers.
Early Intervention in Psychiatry (2024). - Beaudry G et al. Evaluating the risk of suicide and violence in severe mental illness: A feasibility study of two risk assessment tools (OxMIS and OxMIV) in general psychiatric settings.
Frontiers in Psychiatry (2022).