Table 2.

Characteristics of Medicare Fee-For-Service Beneficiaries in the Third Year of the MAPCP Demonstration, N = 302,719

Age, %, y
Age, mean, y68.44
White race, %88.18
Urban place of residence, %59.04
Female, %57.70
Dually eligible for Medicare and Medicaid, %27.14
Disabled, %31.77
End-stage renal disease, %0.81
Institutionalized, %0.96
Health statusa
Hierarchical Condition Categoryb score, mean1.02
   Low risk (< .48), %24.87
   Medium risk (0.48-1.25), %51.96
   High risk (>1.25), %23.17
Charlson comorbidity indexc score, mean0.76
   Low (= 0), %64.72
   Medium (0 <1), %17.69
   High (>1), %17.59
  • MAPCP = Multi-Payer Advanced Primary Care Practice.

  • a Demographic and health status characteristics calculated using the Medicare enrollment database and claims data for the 1-year period before a Medicare beneficiary was first attributed to a practice, after the start of the MAPCP Demonstration.

  • b Hierarchical Condition Category scores use demographic information (age, sex, Medicaid dual eligibility, disability status) and major medical conditions in a base year to predict Medicare spending in the following year. A score of 1.02 means the Medicare beneficiaries in this group were predicted to be 2% more costly than the average Medicare fee-for-service beneficiary.

  • c Charlson Comorbidity Index predicts patients’ mortality or higher health care utilization based on which of the 18 clinical conditions in the index a patient received medical care for in the year before their attribution to a practice. A score of 0 indicates that no comorbidities were found, while a higher score indicates a higher likelihood of mortality or higher health care utilization.