TNNT2 and COVID-19: Eleven variables were retained: age, SBP, COVID-19 vaccination status (Vacc), CVD, red blood cell volume distribution width (RDW), hematocrit (HCT), percentage of monocytes (mono), prothrombin activity (PTA), LDH, total bilirubin (TBil), and cardiac troponin T (cTnT).