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Numerator

Count of Medicare FFS beneficiaries who have had a heart attack

Denominator

Medicare FFS beneficiaries

Methodology

The data value for this metric is the numerator divided by the denominator.

Medicare FFS beneficaries limited to those who (a) have no months of HMO enrollment and (b) have both Part A and Part B for whatever portion of the year that they are covered by FFS Medicare (i.e., they have no months of A-only or B-only coverage).

Beneficiary age group (< 65 and 65+ ) was determined using the age of the individual at the end of the reference year or the individual's age at the time of death.

Of this population, beneficiaries with CCW AMI chronic condition flag values of "1" or "3'" were determined to have had a heart attack.

References

CCW condition flag documentation is posted at http://www.ccwdata.org/data-dictionaries/index.htm

HRR documentation is posted at http://www.dartmouthatlas.org/downloads/methods/geogappdx.pdf • SSA state and county code documentation is posted at County to CBSA crosswalk file