Lower rates are desirable.
The risk-adjusted mortality rate (RAMR) is calculated by dividing the observed number of in-hospital deaths by the expected number of in-hospital deaths and multiplying by the Canadian average in-hospital death rate.
Unit of analysis for denominator cases: Episode of care
An episode of care refers to all contiguous inpatient hospitalizations and same-day surgery visits. For episodes with transfers within or between facilities, transactions were linked regardless of diagnoses. To construct an episode of care, a transfer is assumed to have occurred if either of the following conditions is met:
- An acute care hospitalization or a same-day surgery visit occurs less than 7 hours after discharge from the previous acute care hospitalization or same-day surgery visit, regardless of whether the transfer is coded.;
- An acute care hospitalization or same-day surgery visit occurs between 7 and 12 hours after discharge from the previous acute care hospitalization or same-day surgery visit, and at least one of the hospitalizations or visits has coded the transfer.
Total number of first AMI episodes in an 11-month period
Number of deaths from all causes occurring in hospital within 30 days of admission for AMI
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