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USING A DETERMINATION COEFFICIENT AND RASCH MODEL TO INVESTIGATE NURSE- PATIENT RATIOS AMONG TAIWANESE HOSPITALS
USING A DETERMINATION COEFFICIENT AND RASCH MODEL TO INVESTIGATE NURSE PATIENT RATIOS AMONG TAIWANESE HOSPITALS
TsaiLin Huang
Department of Resources Engineering, National Cheng Kung University, Taiwan, Chia Nan University of Pharmacy and Science Department, Hospital and Health Care Administration, Taiwan
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JungHua Wu*
Department of Resources Engineering, National Cheng Kung University, Taiwan
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TsairWei Chien
Chia Nan University of Pharmacy and Science Department, Hospital and Health Care Administration, Taiwan
Research department of ChiMei Medical Center, Taiwan
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Abstract
Nurse- to- patient ratio is an important indicator of nursing quality. This paper investigates nurse- to- patient ratio in Taiwanese hospitals using a novel Rasch continuous model on Microsoft Excel developed by the authors. Data on nurse- to- patient ratios were obtained from 444 hospitals in 2015 from the Taiwanese Central Health Insurance Agency and the Ministry of Health and Welfare (CHIAMHW) and analyzed. Findings indicated that (1) the minimal determination coefficient (=0.71) among hospital levels is attributable to the respective medical centers, (2) while 21 hospitals met the criterion of 9 patients per nurse set by the Taiwan Joint Commission on Hospital Accreditation (TJCHA), one hospital did not meet the criterion, (3) two hospitals in medical centers were shown to be significantly unstable (i.e., outfit mean square error greater than 2.0), and (4) improvements were made from 2007 to 2015. Results further indicated that the model used in this study is practical and useful for detecting organizational performances within hospitals. This online model and the visual Google Maps presentation have rarely been used in prior literature.
Keywords: Nurse- to- patient ratio, Medical center, Hospital level, Coefficient of determination, Item response theory
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