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Sum of ages of Medicare FFS beneficiaries


Count of Medicare FFS beneficiaries


Age was computed at the end of the reference year.

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.


HRR documentation is posted at • SSA state and county code documentation is posted at County to CBSA crosswalk file