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A 24-Year Follow-up Study on Recidivism in Male Mentally Disordered Sexual Offenders With and Without Psychotic Disorders

Baudin, Christian ; Nilsson, Thomas LU ; Wallinius, Märta LU ; Sturup, Joakim and Andiné, Peter (2020) In Journal of Forensic Sciences 65(5). p.1610-1618
Abstract

There is a lack of knowledge on mentally disordered sex offenders (MDSOs) targeting adult victims, especially regarding recidivism patterns and the specific subgroup with psychiatric disorders. This paper presents index offense data, clinical data, and recidivism patterns over up to 24 years in a cohort of 146 MDSOs, with and without psychotic disorders, sentenced in Sweden between 1993 and 1997. At the time of the offense, all offenders were affected by clinical, developmental, and criminal history factors. MDSOs with psychotic disorders only marginally differed from those without, the former being less likely to have been institutionalized during childhood, intoxicated during the index offense, or diagnosed with a personality... (More)

There is a lack of knowledge on mentally disordered sex offenders (MDSOs) targeting adult victims, especially regarding recidivism patterns and the specific subgroup with psychiatric disorders. This paper presents index offense data, clinical data, and recidivism patterns over up to 24 years in a cohort of 146 MDSOs, with and without psychotic disorders, sentenced in Sweden between 1993 and 1997. At the time of the offense, all offenders were affected by clinical, developmental, and criminal history factors. MDSOs with psychotic disorders only marginally differed from those without, the former being less likely to have been institutionalized during childhood, intoxicated during the index offense, or diagnosed with a personality disorder, substance use disorder, or paraphilic disorder. In the cohort, 3.4% of the MDSOs were reconvicted for a new sex offense over 2 years, 9.6% over 5 years, 13.0% over 10 years, and 17.1% over the entire follow-up period of 24 years. In MDSOs with psychotic disorders, no subjects were reconvicted during the first 2 years, while 2.6% were reconvicted over 5 years, 5.3% over 10 years, and 7.9% over 24 years. Recidivism rates for violent and general reoffenses were 39.0% and 37.7%, respectively, for the cohort of MDSOs, and subjects with psychotic disorders reoffended significantly later in general offenses. In conclusion, MDSOs with psychotic disorders showed the same recidivism pattern as MDSOs without psychotic disorders. Furthermore, recidivism research may preferably focus on follow-up periods of 5–10 years since most offenders appear to recidivate within this timeframe.

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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
follow-up, mentally disordered sex offenders, psychotic disorder, rape, recidivism, sex offenses
in
Journal of Forensic Sciences
volume
65
issue
5
pages
9 pages
publisher
Wiley-Blackwell
external identifiers
  • scopus:85083710768
  • pmid:32311773
ISSN
0022-1198
DOI
10.1111/1556-4029.14327
language
English
LU publication?
yes
id
657a617b-8878-42c3-88b7-3224c1da7ace
date added to LUP
2020-05-28 16:48:16
date last changed
2021-06-09 01:01:32
@article{657a617b-8878-42c3-88b7-3224c1da7ace,
  abstract     = {<p>There is a lack of knowledge on mentally disordered sex offenders (MDSOs) targeting adult victims, especially regarding recidivism patterns and the specific subgroup with psychiatric disorders. This paper presents index offense data, clinical data, and recidivism patterns over up to 24 years in a cohort of 146 MDSOs, with and without psychotic disorders, sentenced in Sweden between 1993 and 1997. At the time of the offense, all offenders were affected by clinical, developmental, and criminal history factors. MDSOs with psychotic disorders only marginally differed from those without, the former being less likely to have been institutionalized during childhood, intoxicated during the index offense, or diagnosed with a personality disorder, substance use disorder, or paraphilic disorder. In the cohort, 3.4% of the MDSOs were reconvicted for a new sex offense over 2 years, 9.6% over 5 years, 13.0% over 10 years, and 17.1% over the entire follow-up period of 24 years. In MDSOs with psychotic disorders, no subjects were reconvicted during the first 2 years, while 2.6% were reconvicted over 5 years, 5.3% over 10 years, and 7.9% over 24 years. Recidivism rates for violent and general reoffenses were 39.0% and 37.7%, respectively, for the cohort of MDSOs, and subjects with psychotic disorders reoffended significantly later in general offenses. In conclusion, MDSOs with psychotic disorders showed the same recidivism pattern as MDSOs without psychotic disorders. Furthermore, recidivism research may preferably focus on follow-up periods of 5–10 years since most offenders appear to recidivate within this timeframe.</p>},
  author       = {Baudin, Christian and Nilsson, Thomas and Wallinius, Märta and Sturup, Joakim and Andiné, Peter},
  issn         = {0022-1198},
  language     = {eng},
  number       = {5},
  pages        = {1610--1618},
  publisher    = {Wiley-Blackwell},
  series       = {Journal of Forensic Sciences},
  title        = {A 24-Year Follow-up Study on Recidivism in Male Mentally Disordered Sexual Offenders With and Without Psychotic Disorders},
  url          = {http://dx.doi.org/10.1111/1556-4029.14327},
  doi          = {10.1111/1556-4029.14327},
  volume       = {65},
  year         = {2020},
}