COVID-19	Coronavirus infectious disease-2019
JCT	The Joint Commission of Taiwan
ISQua	The International Society for Quality in Health Care
TCPI	Taiwan Clinical Performance Indicator
SPC	Statistical Process Control
ANOVA	Analysis of variance
LSD	Least Significant Difference
IBM	International Business Machines Corp
SPSS	Statistical Package for the Social Sciences
STEMI	ST elevation myocardial infarction
PPCI	Primary percutaneous coronary intervention
ER	Emergency room
DAMA	Discharge against medical advice
IV-tPA	Intravenous tissue-type plasminogen activator
SD	Standard deviation
CI	Confidence interval