The Comparison of MMPI Profile between In-Family and Out-Family Child Sexual Offenders with Pedophilia

Myeongjae Kim; Jonghyuk Choi; Mikyung Lyu; Jinhyeong Ahn; Sunbum Kim; Seongyeon Hwang

doi:10.7580/kjlm.2016.40.4.125

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Kim, Choi, Lyu, Ahn, Kim, and Hwang: The Comparison of MMPI Profile between In-Family and Out-Family Child Sexual Offenders with Pedophilia

Original Article

Korean J Leg Med 2016;40(4):125-132.

Published online: 19 December 2016

DOI: https://doi.org/10.7580/kjlm.2016.40.4.125

The Comparison of MMPI Profile between In-Family and Out-Family Child Sexual Offenders with Pedophilia

Myeongjae Kim¹, Jonghyuk Choi¹, Mikyung Lyu¹, Jinhyeong Ahn¹, Sunbum Kim², Seongyeon Hwang¹

¹Departments of Psychiatry and The National Forensic Psychiatric Hospital, Gongju, Korea

²Social Welfare, The National Forensic Psychiatric Hospital, Gongju, Korea

Correspondence to Myeongjae Kim Department of Psychiatry, The National Forensic Psychiatric Hospital, 253 Banpochogyo-gil, Banpo-myeon, Gongju 32621, Korea Tel: +82-41-840-5459 Fax: +82-41-840-5498 E-mail: lucinda@hanmail.net

Received 26 August 201615 October 2016 Accepted 10 November 2016

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Forty six patients (23 in-family and 23 out-family child sexual offenders) diagnosed with pedophilia participated in this study. For each patient, computerized objective data, obtained from the doctors, nurses, psychologists, and prosecutors involved, and the hospital information system, were collected. Immediately after the authors collected data that included any personal identifying information, it was replaced by random numbers to prevent bias and to protect privacy. Statistical analysis was performed using SPSS version 20.0 for MS Windows. Comparative items on demographic characteristics were evaluated by a paired t test and chi-square test. Out-family child sexual offenders were younger, assaulted younger victims, and possessed a higher sexual recidivism rate than in-family sexual offenders did (P<0.05). The four scales of Minnesota Multiphasic Personality Inventory showed a significant difference between in-family and out-family child sexual offenders. There was no statistically significant difference in the victim's gender and the incidence of comorbid psychiatric disease between in-family and out-family child sexual offenders.

Keywords: Pedophilia, Sex offenses, Forensic medicine, MMPI

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Table 1.

Demographic characteristics of in-family and out-family child sexual offenders with pedophilia

Characteristic		In-family (n=24)	Out-family (n=24)	Total (n=48)	χ² or t	P-value
Occupation	White collar	2 (8.3)	1 (4.2)	3 (6.2)	0.573	0.751
	Blue collar	13 (54.2)	12 (50.0)	25 (52.1)
	Unemployed	9 (37.5)	11 (45.8)	20 (41.7)
Education	Elementary school	0 (0)	3 (12.5)	3 (6.2)	6.456	0.091
	Middle school	9 (37.5)	4 (16.7)	13 (27.1)
	High school	11 (45.8)	9 (37.5)	20 (41.7)
	College	4 (16.7)	8 (33.3)	12 (25.0)
Marriage	Unmarried	2 (8.3)	18 (75.0)	20 (41.7)	22.521	0.000^a)
	Married	9 (37.5)	2 (8.3)	11 (22.9)
	Divorced	11 (45.8)	4 (16.7)	15 (31.2)
	Remarried	2 (8.3)	0 (0)	2 (4.2)

Values are presented as number (%).

^a) P<0.001.

Table 2.

Criminological, clinical characteristics of in-family and out-family child sexual offenders with pedophilia

Variable		In-family	Out-family	Total	χ² or t	P-value
Victim gender	Boy	1 (4.2)	5 (20.8)	6 (12.5)	3.048	0.081
	Girl	23 (95.8)	19 (79.2)	42 (87.5)
Crime	Rape	17 (70.8)	10 (41.7)	27 (56.2)	4.148	0.126
	Sexual act	1 (4.2)	2 (8.3)	3 (6.2)
	Sexual abuse	6 (25.0)	12 (50.0)	18 (37.5)
Victim age		10.33±2.65	8.71±2.20	9.52±2.54	2.314	0.025^a)
Offender age		37.63±5.40	30.75±10.43	34.19±8.92	2.868	0.006^b)
	≤30	3 (12.5)	13 (54.2)	16 (33.3)	9.402	0.009^b)
	31-40	14 (58.3)	7 (29.2)	21 (43.8)
	≥41	7 (29.2)	4 (16.7)	11 (22.9)
Past sexual crime history		0.08±0.29	1.25±1.54	0.67±1.24	−3.652	0.001^b)
Past other crime history		0.21±0.66	0.83±1.52	0.52±1.20	−1.846	0.071
Comorbid psychiatric disease	Yes	5 (20.8)	11 (45.8)	16 (33.3)	3.375	0.066
	No	19 (79.2)	13 (54.2)	32 (66.7)

Values are presented as number (%) or mean±standard deviation.

^a) P<0.05;

^b) P<0.01.

Table 3.

MMPI profile of in-family and out-family child sexual offenders with pedophilia

Variable	In-family	Out-family	Total	t	P-value
L (lie)	59.67±8.58	53.04±13.33	56.35±11.58	2.048	0.046^a)
F (infrequency)	51.96±9.25	55.92±16.06	53.94±13.12	−1.047	0.301
K (defensiveness)	52.33±9.54	50.96±13.36	51.65±11.51	0.410	0.684
Hs (hypochondriasis)	50.00±4.24	56.96±11.10	53.48±9.03	−2.869	0.006^b)
D (depression)	65.71±11.20	55.63±10.30	60.67±11.80	3.247	0.002^b)
Hy (hysteria)	58.08±9.23	55.92±13.52	57.00±11.50	0.649	0.520
Pd (psychopathic deviate)	54.33±7.56	61.75±11.38	58.04±10.26	−2.660	0.011a)
Mf (masculinity-femininity)	50.79±8.52	55.25±10.34	53.02±9.64	−1.631	0.110
Pa (paranoia)	57.96±15.54	63.08±20.12	60.52±17.98	−0.987	0.329
Pt (psychasthenia)	56.50±13.51	62.33±14.55	59.42±14.20	−1.439	0.157
Sc (schizophrenia)	53.83±13.76	58.46±14.62	56.15±14.24	−1.129	0.265
Ma (hypomania)	49.17±12.04	48.25±9.37	48.71±10.69	0.294	0.770
Si (social introversion)	53.88±10.91	59.38±17.06	56.63±14.44	−1.331	0.190

Values are presented as mean±standard deviation. MMPI, Minnesota Multiphasic Personality Inventory.

^a) P<0.05;

^b) P<0.01.

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