Submitted for Publication: February 26, 2013; final revision received July 17, 2013; accepted August 8, 2013.
Published Online: January 15, 2014. doi:10.1001/jamapsychiatry.2013.3935.
Study concept and design: Fazel, Pillas, Lichtenstein, Långström.
Acquisition of data: Fazel, Lichtenstein, Långström.
Analysis and interpretation of data: Fazel, Wolf, Pillas, Lichtenstein.
Drafting of the manuscript: Fazel.
Critical revision of the manuscript for important intellectual content: Fazel, Wolf, Pillas, Lichtenstein, Långström.
Statistical analysis: Fazel, Wolf, Pillas, Lichtenstein.
Obtained funding: Fazel, Lichtenstein, Långström.
Administrative, technical, or material support: Fazel, Wolf, Lichtenstein, Långström.
Study supervision: Fazel.
Conflict of Interest Disclosures: None reported.
Funding/Support: This study was funded by grant 095806 from the Wellcome Trust (Dr Fazel and Mr Wolf), the Swedish Prison and Probation Service (Dr Långström), and the Swedish Research Council (Drs Lichtenstein and Långström).
Role of the Sponsor: The funding sources had no role in the design and conduct of the study; collection, management, analysis, or interpretation of the data; preparation, review, or approval of the manuscript; and the decision to submit the manuscript for publication.
Additional Contributions: Marcus Boman, MSc, provided data management.