The related factors in repeated aggressive behaviors among psychiatric inpatients in a psychiatric hospital

[[abstract]]Background and Objective: Aggressive behavior is an important clinical hazard in psychiatric nursing care. Repeated aggressive behaviors increased care burden of caregivers. In this study, we investigated the prevalence of aggressive behavior, the factors that influenced the repeated aggressive behaviors and how to prevent from the aggressive behavior in a psychiatric hospital.Methods: In this study, the information originated from the safety committee database 2009-2011 in a psychiatric hospital. The inclusion criteria was inpatients who had physical aggressive behaviors. The exclusion criteria was verbal aggressive or sexual assault. We used multivariate logistic regression analysis to examine the repeated aggressive behaviors.Results: There were 1120 aggressive behaviors acted by 418 patients. The only one attack was executed by 241 patients, the prevalence rate was 57.7%. The repeated aggressions were acted by 177 patients, the prevalence rate was 42.3%. The factors in relation to repeated aggressive behaviors were: the morbidity year 6-10 vs 5 (odd rate=2.06); the aggressive behavior in hospitalization above 2.6 years vs 30 days (odd ratio=3.62); positive violent history vs no violent history (odd ratio=3.29); non drug additive vs drug additive (odd ratio=2.9); night vs daytime (oddratio=2.20). Conclusion: The aggressive behavior threatened the other inpatients as well as medical staff in both physical and psychological aspect. The repeated aggressive behaviors resulted in difficulty in nursing care. Thus in this study, we elucidated the high risk patients who had repeated aggressive behaviors. Then we could improve the hardware and manpower to reduce the repeated aggressive behaviors among such high risk patients