Modified Mid America Heart Institute Coronary Care Unit scoring system--a new comprehensive prognostic index for Coronary Care Unit patients.

Background: Prediction of long-term outcomes for patients presenting with cardiac events is important, but few predictive instruments are available. We previously developed an innovative scoring system, the Mid America Heart Institute (MAHI) Coronary Care Unit (CCU) scoring system, for quantifying outcomes of patients admitted to the CCU, using clinical events rather than solely physiologic and laboratory variables. The objective of our study was to validate a refined version of this system (MAHI-2) and to explore its prognostic value, we have postulated that patients with high MAHI scores would have higher mortality and morbidity in 1-year follow-up.