Covariates | Intercept; Atrial fibrillation; Age function 1; Age function 3; Age by reoperation function; Age by status function; Age by MVR function; Age by MVRepair function; BSA function 1; BSA function 2; CHF but not NYHA IV; CHF and NYHA IV; CHF by MVR function; CHF by MVRepair function; CLD function; Creatinine function 1; CVD without prior CVA; CVD and prior CVA; Diabetes, noninsulin; Diabetes, insulin; Dialysis; Dialysis by MVR function; Dialysis by MVRepair function; Ejection fraction function; Endocarditis, active; Female; Female by BSA function 1; Female by BSA function 2; Hypertension; IABP or inotropes; IABP by MVR function; IABP by MVRepair function; Insufficiency tricuspid; MI <=21 days; MVR; MVRepair; No. diseased vessel function; Peripheral vascular disease; Race black; Race Hispanic; Reop, 1 previous operation; Reop, >=2 previous operations; Status urgent; Status emergent; Status salvage; Stenosis aortic |