Standardization of medical service indicators: A useful technique for hospital administration

Li Wu, Conghua Ji, Hanti Lu, Xuewen Hong, Shan Liu, Ying Zhang, Qiushuang Li, Sijia Huang, Penglei Zhou, Jiong Yao and Yuxiu Hu

PLOS ONE, 2018, vol. 13, issue 11, 1-13

Abstract: Background: Many comparability problems appear in the process of the performance assessment of medical service. When comparing medical evaluation indicators across hospitals, or even within the same hospital, over time, the differences in the population composition such as types of diseases, comorbidities, demographic characteristics should be taken into account. This study aims to introduce a standardization technique for medical service indicators and provide a new insight on the comparability of medical data. Methods: The medical records of 142592 inpatient from three hospitals in 2017 were included in this study. Chi-square and Kruskal-Wallis tests were used to explore the compositions of confounding factors among populations. The procedure of stratified standardization technique was applied to compare the differences of the average length of stay and the average hospitalization expense among three hospitals. Results: Age, gender, comorbidity, and principal diagnoses category were considered as confounding factors. After correcting all factors, the average length of stay of hospital A and C were increased by 0.21 and 1.20 days, respectively, while that of hospital B was reduced by 1.54 days. The average hospitalization expenses of hospital A and C were increased by 1494 and 660 Yuan, whilst that of hospital B was decreased by 810 Yuan. Conclusions: Standardization method will be helpful to improve the comparability of medical service indicators in hospital administration. It could be a practical technique and worthy of promotion.

Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0207214

DOI: 10.1371/journal.pone.0207214

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