“…The variables in our study include patient demographics (age, sex, race, household income, primary payer for the hospitalization) and hospital demographics (hospital type, hospital size and region). To further reduce selection bias, we included common cardiovascular comorbidities, such as smoking, hypertension, obstructive sleep apnea (OSA), peripheral artery disease (PAD), and other reported risk factors for TCM including chronic obstructive pulmonary disease (COPD), 21,22 anxiety 23 and depressive disorders, 18 obesity, 24 diabetes mellitus (DM), 25 chronic kidney disease (CKD) 26 and sepsis. 27 In-Hospital Outcomes…”