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. 2020 Jan-Feb;35(1):65–74. doi: 10.21470/1678-9741-2019-0181
Abbreviations, acronyms & symbols      
ANOVA = Analysis of variance   NIS = National Inpatient Sample
CABG = Coronary artery bypass grafting   OR = Odds ratio
CCI = Charlson comorbidity index   PCS  = Previous cardiac surgery
COPD = Chronic obstructive pulmonary disease   SAVR = Surgical aortic valve replacement
ER = Emergency room   SNHDD = Spanish National Hospital Discharge Database
IHM = In-hospital mortality   TAVR = Transcatheter aortic valve replacement
LOHS = Length of hospital stay   T2DM = Type 2 diabetes mellitus