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Psychiatr Serv. 2005 Jun;56(6):711-6.

Ethnic differences in prediction of violence risk with the HCR-20 among psychiatric inpatients.

Author information

1
Hawaii State Hospital, 45-710 Keaahala Road, Kaneohe, Hawaii, USA. defujii@hsh.health.state.hi.us

Abstract

OBJECTIVE:

This study examined ethnic differences in assessment of violence risk among psychiatric inpatients by using the Historical Clinical Risk Management-20 (HCR-20).

METHODS:

The HCR-20 was administered to 169 consecutive psychiatric inpatients. Individual items and total scores on the HCR-20 were compared between patients of Asian-American (N=51), Euro-American (N=46), and Native-Hawaiian (N=38) heritage. Receiver operating characteristic (ROC) and stepwise regressions were calculated for each ethnic group with HCR-20 scores as predictor variables and violent event reports of significant threats and assaults as the outcome measure.

RESULTS:

Similar rates of overall violence were found between ethnic groups, and the HCR-20 was found to have predictive validity as measured by ROC analysis. Differences in scores on individual HCR-20 items were found, including young age at first incident of violence, psychopathy, early maladjustment, personality disorder, and past supervision failure, as well as total HCR-20 score, with Asian Americans scoring lower (less risk) than Euro-Americans and Native Hawaiians. Stepwise multiple regressions indicated a different pattern of predictor variables for each ethnic group, with impulsivity salient for the Asian-American group, young age at first incident of violence salient for the Euro-American group, and young age at first incident of violence, relationship instability, and risk-management plans' lacking feasibility as salient predictors for the Native-Hawaiian group.

CONCLUSIONS:

The findings provide preliminary support for the cross-cultural validity of the HCR-20 while at the same time identifying unique ethnic differences in prediction of violence risk among psychiatric inpatients.

PMID:
15939948
DOI:
10.1176/appi.ps.56.6.711
[Indexed for MEDLINE]
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