About the Authors

Seena Fazel
Department of Psychiatry, University of Oxford, Warneford Hospital, Oxford, United Kingdom

Seena Fazel, Martin Grann, Niklas Långström
Centre for Violence Prevention, Karolinska Institutet, Stockholm, Sweden

Paul Lichtenstein, Martin Grann, Niklas Långström
Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden

Martin Grann, Niklas Långström
Swedish Prison and Probation Service, Norrköping, Sweden

Corresponding Author

seena.fazel@psych.ox.ac.uk

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SF PL MG NL. Performed the experiments: SF. Analyzed the data: SF. Contributed reagents/materials/analysis tools: n/a. Wrote the first draft of the manuscript: SF. Contributed to the writing of the manuscript: SF PL NL. ICMJE criteria for authorship read and met: SF PL MG NL. Agree with manuscript results and conclusions: SF PL MG NL. Secured funding, obtained register data, and supervised data extraction: PL NL.