Sensitivity and Specificity of the Phallometric Test for Hebephilia - PubMed (original) (raw)

. 2015 Sep;12(9):1940-50.

doi: 10.1111/jsm.12970. Epub 2015 Aug 14.

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Sensitivity and Specificity of the Phallometric Test for Hebephilia

James M Cantor et al. J Sex Med. 2015 Sep.

Abstract

Introduction: The phallometric test has been examined most widely in the literature with regard to its ability to detect pedophilia; however, it has become of increasing interest to clinicians and researchers to ascertain to what extent the test accurately detects hebephilia: Whereas pedophilia refers to an adult's sexual interest in prepubescent children (age 10 or younger, on average), hebephilia refers to an adult's sexual interest in pubescent children (ages 11-14, on average).

Aim: The aim of this study was to estimate the accuracy of volumetric phallometry in distinguishing pedophilic men and hebephilic men from men who are teleiophilic (primarily sexually interested in adults, age 17 or older).

Methods: A retrospective chart review was conducted on the cumulate database of a large phallometric laboratory and clinic to identify a group of 239 men who committed sexual offenses against extrafamilial adults age 17 or older and a group of 996 men who committed sexual offenses against extrafamilial children age 14 or younger, all of whom professed a greater sexual interest in adults over children.

Main outcome measures: The sensitivity and specificity of the phallometric test is calculated for its accuracy in distinguishing sexual preferences for children spanning various age ranges.

Results: Receiver operator characteristic curves were highly significant for each classification decision: Using its previously established cut-point of +0.25 standard deviation (SD) units, the phallometric test detected hebephilia with a sensitivity and specificity of 70.0% and 90.7%, detected pedophilia with 46.9% and 100%, and detected pedohebephilia with 75.3% and 90.7%. At a new cut-point of +0.0 SD units, the sensitivity and specificity of the test for pedophilia was 71.9% and 95.3%.

Conclusions: Volumetric phallometry significantly distinguishes teleiophilic sex offenders from each of pedophilic, hebephilic, and pedohebephilic sex offenders and can serve as a reliable diagnostic test of sexual age preference among men who deny sexual interest in children.

Keywords: Diagnostic Tests; Hebephilia; Paraphilia; Pedohebephilia; Pedophilia; Penile Plethysmography; Phallometry.

© 2015 International Society for Sexual Medicine.

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