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KMID : 1138720230490010099
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Korean Public Health Research
2023 Volume.49 No. 1 p.99 ~ p.110
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Factors Associated with Hospital Length of stay among Psychiatric Disorders Patients: Based on the In-depth injury Patient Surveillance System Data
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Jeong Su-Bin
Lee Hye-Won
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Abstract
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Objectives: This study was conducted to investigate the determinants associated with hospital length of stay(LOS) for psychiatric disorder patients.
Methods: Data was selected from the Korean National Hospital Discharge In-depth Injury Survey database from 2011 to 2020. The subjects of this study were patients diagnosed with psychiatric disorders. We conducted a frequency analysis to analyze general characteristics of psychiatric disorder patients and wilcoxon rank-sum test/kruskal-wallis test to compare the difference in the LOS according to psychiatric disorder patients’demographic, hospital and clinical characteristics. Moreover, we performed a Poisson regression analysis to evaluate the effects of the patients’characteristics on the length of stay in psychiatric disorders.
Results: During the study period, the median LOS was 11.4 days. The median LOS was longer in males (12 days), patients aged 20-39 years old (16 days), those with medical benefits (15 days), those admitted in hospitals with 500-999 beds and 1000 beds or more (14 days) and hopitals located in gangwon-do and jeju island (14 days), those with schizophrenia as a primary diagnosis (105.3 days), and those with highest CCI scores (61.4 days). In the regression analysis, it was found that schizophrenia and mental retardation disorder (relative risk [RR]=3.92, RR=3.61), male (RR=1.13), 20-39 years old(RR=1.20), medical benefits (RR=3.12), 100-299 beds (RR=1.15), Chungcheong-do (RR=2.11) and CCI score of 3 or more (RR=2.06) were associated with the significantly increased LOS for psychiatric disorder patients.
Conclusion: To reduce the unnecessary long-term LOS for psychiatric disorder patients, which causes a lot of socio-economic costs, early treatment should be planned when hospitalized, and effective strategies should be prepared to manage patients in the community after discharge.
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KEYWORD
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Psychiatric disorder, schizophrenia, mental retardation, length of stay
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