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J Affect Disord. 2005 Dec;89(1-3):99-105. Epub 2005 Sep 27.

Obsessive fears about harm to self or others and overt aggressive behaviors in youth diagnosed with juvenile-onset bipolar disorder.

Author information

  • 1Juvenile Bipolar Research Foundation, 550 Ridgewood Rd., Maplewood, NJ 07040, United States. dpapolos@jbrf.org

Abstract

BACKGROUND:

Obsessive fear-of-harm, either fear of doing harm or fear of harm coming to self, may be closely associated with aggressive behaviors in juvenile-onset bipolar disorder.

METHODS:

We analyzed parent-report data on the Yale-Brown Obsessive Compulsive Scale (YBOCS) and Overt Aggression Scale (OAS) for 1601 children/adolescents with a clinician-assigned diagnosis of bipolar disorder. The summing of 6 YBOCS items rated "often" or "very often or almost constant" yielded a biphasic distribution of scores. Median-split was used to define meaningful subgroups contrasting high vs. low "fear-of-harm", which were then compared on parent-reported severe injury to self and others and on parent-reported suicide threats.

RESULTS:

High fear-of-harm was strongly associated with parent-reported severe injury to self and others. For self-injury, the estimated risk ratio for high vs. low fear-of-harm subgroups was 2.68 (95% confidence interval 1.87-3.86), indicating greater than doubling of risk associated with high fear-of-harm. For severe injury to others, the estimated risk ratio was 7.97 (95% confidence interval 4.19-15.2), suggesting a nearly eight-fold increased risk associated with high fear-of-harm. High fear-of-harm subjects were reported to make serious suicide threats much more frequently than low fear-of-harm subjects (odds ratio, estimated by ordinal logistic regression modeling methods, was 2.42 (95% CI 2.00 to 2.92; z=9.12, p<0.001).

LIMITATIONS:

Child report data was not obtained; clinician diagnosis was not validated via research interview.

CONCLUSIONS:

Obsessive fears about harm to self or others in a sample of children with a clinician-assigned diagnosis of bipolar disorder were found to be positively related to increased behavioral aggression towards self and others, as well as to frequent suicide threats.

[PubMed - indexed for MEDLINE]
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