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KMID : 0869520220280020160
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Journal of East-West Nirsing Research
2022 Volume.28 No. 2 p.160 ~ p.169
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Predictors for Aggressive Behavior of Patients with Mental Illness in a Closed Psychiatric Ward using Zero-Inflated Poisson Regression: A Retrospective Study
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Kim Jung-Ho
Shin Sung-Hee
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Abstract
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Purpose: This study was conducted to identify predictors related to aggressive behavior of patients with mental illness admitted to a closed psychiatric ward.
Methods: This study adopted a retrospective design which analyzed the hospital medical records of 363 patients with mental illness admitted to the psychiatric closed ward of a university hospital in Seoul, Korea. The collected data were analyzed using SPSS IBM 20.0 and STATA 12.0 SE. ZIP (Zero-Inflated Poisson) and count data analysis were used for the factor influencing the occurrence and frequency of aggressive behavior.
Results: The results of ZIP model showed that the factors influencing non-probability of aggressive behavior were anxiety, non-adherence, and frustration. In addition, the factors influencing frequency of aggressive behavior were bipolar disorder and personality disorder trait.
Conclusion: We found that bipolar disorder, frustration, and non-adherence are more likely to increase the likelihood of aggressive behavior in patients with mental illness. In particular, patients diagnosed with bipolar disorder were 1.95 times more likely to engage in repetitive aggressive behavior compared to those without a diagnose. However, since the results were different form previous studies, further studies on the traits of anxiety and personality disorders are needed.
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KEYWORD
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Nursing, Psychiatry, Aggression, Patients
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