Aggressive behaviour on acute psychiatric wards: prevalence, severity and management.

AIM: This paper reports a study to investigate the nature and prevalence of inpatient aggressive behaviour directed at staff and other patients and, in the case of patient self-harm, the methods used by nursing staff to manage this.
BACKGROUND: Aggressive behaviour poses a threat to the physical and psychological health of psychiatric nursing staff. The fear that results from working in a climate of potential danger can also have a damaging impact on patient care.
METHODS: Nursing staff on five acute inpatient wards in one hospital in the United Kingdom collected data on aggressive incidents using the Staff Observation Aggression Scale - Revised during a 10 month period from June 2001 to April 2002.
RESULTS: There were 254 incidents of aggression recorded. Staff were most commonly targeted and were involved in 57 x 1% of incidents. The most frequent provocation of the aggression was the patient being denied something such as leave from the ward (29 x 5% of incidents). The most frequent means used by patients was verbal aggression (60% of incidents), the most frequent outcome for the victim was feeling threatened (59% of incidents), and verbal interventions were used most frequently to manage the aggressive behaviour (43 x 7%). Despite many incidents involving verbal aggression in both staff- and patient-targeted aggression, 35 x 9% of incidents involving staff and 25% of incidents involving other patients resulted in seclusion.
CONCLUSION: It is estimated that in a 12 month period at the hospital in this study a nurse would have a one in 10 chance per year of receiving any kind of injury as a result of patient aggression. Despite the predominance of verbal over physical aggression, the fear generated from working in such an environment and a difficulty in understanding the causes of patient aggression may motivate staff to manage aggressive incidents with physical methods such as seclusion and restraint on a frequent basis.