Browsing by Author "Chang, Koyin"
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Item Does Computerized Physician Order Entry Benefit from Dynamic Structured Data Entry? A Quasi-Experimental Study(2018-11-26) Linn, George; Ying, Yung-Hsiang; Chang, KoyinAbstract Background With advancements in information technology, computerized physician order entry (CPOE) and electronic Medical Records (eMR), have become widely utilized in medical settings. The predominant mode of CPOE in Taiwan is free text entry (FTE). Dynamic structured data entry (DSDE) was introduced more recently, and has increasingly drawn attention from hospitals across Taiwan. This study assesses how DSDE compares to FTE for CPOE. Methods A quasi-experimental study was employed to investigate the time-savings, productivity, and efficiency effects of DSDE in an outpatient setting in the gynecological department of a major hospital in Taiwan. Trained female actor patients were employed in trials of both entry methods. Data were submitted to Shapiro-Wilk and Shapiro-Francia tests to assess normality, and then to paired t-tests to assess differences between DSDE and FTE. Results Relative to FTE, the use of DSDE resulted in an average of 97% time saved and 55% more abundant and detailed content in medical records. In addition, for each clause entry in a medical record, the time saved is 133% for DSDE compared to FTE. Conclusion The results suggest that DSDE is a much more efficient and productive entry method for clinicians in hospital outpatient settings. Upgrading eMR systems to the DSDE format would benefit both patients and clinicians.Item Investigating stationarity in tourist arrivals to Taiwan using Panel KPSS with sharp drifts and smooth breaks.(Cognizant Communication Corporation, 2014-11-01) 印永翔; Yang, Ginny Ju-Ann; Ying, Yung-Hsiang; Chang, Koyin; Lee, Chen-HsunThis study applied panel-based stationary tests to investigate the nonstationarity of long-run tourist arrivals to Taiwan. The sample of visitors in this study arrived from six main source countries between 1970 and 2011. We employed a panel KPSS test using a Fourier function and sharp drifts, which considers cross-sectional dependence as well as sudden impact and smooth transformation of data. This test can determine, with more power, whether tourist arrivals are stationary. Results of this study indicate that the trend in the series of tourist arrivals to Taiwan is stationary, with the exception of arrivals from Korea and Europe, implying that economic fluctuation inserts more impact on the tourism industry in these countries than others.