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Logo of bmcpsycBioMed Centralsearchsubmit a manuscriptregisterthis articleBMC Psychiatry
 
BMC Psychiatry. 2011; 11: 44.
Published online Mar 18, 2011. doi:  10.1186/1471-244X-11-44
PMCID: PMC3068951
Short-term prediction of threatening and violent behaviour in an Acute Psychiatric Intensive Care Unit based on patient and environment characteristics
Arne E Vaaler,corresponding author1,2 Valentina C Iversen,1,3 Gunnar Morken,1,3 John C Fløvig,1,3 Tom Palmstierna,1,4,5 and Olav M Linaker1,2
1Department of Neuroscience, Faculty of Medicine, Norwegian, University of Science and Technology, Trondheim, Norway
2Division of Psychiatry, Department of Research and Development, St Olavs University Hospital, Trondheim, Norway
3Division of Psychiatry, Department Østmarka, St Olavs University Hospital, Trondheim, Norway
4Social and Forensic Psychiatry Program, Stockholm Centre for Psychiatric Research and Education, Karolinska Institutet/Stockholm County Council Health Care Provision, Stockholm, Sweden
5St. Olav's University Hospital, Forensic Dept. and Research Centre Brøset, Trondheim, Norway
corresponding authorCorresponding author.
Arne E Vaaler: arne.e.vaaler/at/ntnu.no; Valentina C Iversen: valentina.iversen/at/ntnu.no; Gunnar Morken: gunnar.morken/at/ntnu.no; John C Fløvig: john.chr.flovig/at/ntnu.no; Tom Palmstierna: tom.palmstierna/at/ki.se; Olav M Linaker: olav.linaker/at/ntnu.no
Received August 22, 2010; Accepted March 18, 2011.
Abstract
Background
The aims of the present study were to investigate clinically relevant patient and environment-related predictive factors for threats and violent incidents the first three days in a PICU population based on evaluations done at admittance.
Methods
In 2000 and 2001 all 118 consecutive patients were assessed at admittance to a Psychiatric Intensive Care Unit (PICU). Patient-related conditions as actuarial data from present admission, global clinical evaluations by physician at admittance and clinical nurses first day, a single rating with an observer rated scale scoring behaviours that predict short-term violence in psychiatric inpatients (The Brøset Violence Checklist (BVC)) at admittance, and environment-related conditions as use of segregation or not were related to the outcome measure Staff Observation Aggression Scale-Revised (SOAS-R). A multiple logistic regression analysis with SOAS-R as outcome variable was performed.
Results
The global clinical evaluations and the BVC were effective and more suitable than actuarial data in predicting short-term aggression. The use of segregation reduced the number of SOAS-R incidents.
Conclusions
In a naturalistic group of patients in a PICU segregation of patients lowers the number of aggressive and threatening incidents. Prediction should be based on clinical global judgment, and instruments designed to predict short-term aggression in psychiatric inpatients.
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