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Sex Abuse. 2018 Mar;30(2):147-168. doi: 10.1177/1079063216637857. Epub 2016 Mar 21.

Do Sex Offenders Have Higher Levels of Testosterone? Results From a Meta-Analysis.

Author information

1
1 Simon Fraser University, Burnaby, BC, Canada.
2
2 University of California, Irvine, CA, USA.

Abstract

The purpose of the current study is to review the available scientific evidence on the relationship between testosterone and sexual aggression. A systematic search for all primary studies comparing basal testosterone levels in sex offenders and non-sex offenders was undertaken across 20 electronic databases using an explicit search strategy and inclusion/exclusion criteria. A total of seven studies were identified and 11 effect sizes were computed; effects were pooled using both fixed and random effects meta-analysis models. Although individual study findings present a mix of results wherein sex offenders have higher or lower baseline levels of testosterone than non-sex offenders, pooled results indicate no overall difference between groups. Moderators of the analyses suggest possibly lower rates of testosterone in child molesters than controls; however, results are dependent on study weighting. Limitations, policy implications with respect to chemical castration laws, and future directions for research are discussed.

KEYWORDS:

meta-analysis; sex offenders; sexual aggression; testosterone

PMID:
27000267
DOI:
10.1177/1079063216637857
[Indexed for MEDLINE]

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