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Table 2 Descriptive Statistics across Matched Pairs (2011–2014)

From: Economic value of orthotic and prosthetic services among medicare beneficiaries: a claims-based retrospective cohort study, 2011–2014

  Lower extremity orthotic model Spinal orthotic model Lower extremity prosthetic model
Demographic characteristic Study group Comparison group Study group Comparison group Study group Comparison group
Number of beneficiaries 43,487 43,487 34,575 34,575 545 545
Average age 68.6 68.7 67.2 67.2 65.9 65.9
Dual eligibility status 29.7% 29.7% 34.9% 34.9% 39.2% 39.2%
Gender: female 43.1% 43.1% 37.6% 37.6% 17.4% 17.4%
Race/Ethnicity: white 84.7% 84.7% 81.2% 81.2% 68.8% 68.8%
Race/Ethnicity: black or african american 8.3% 8.3% 11.8% 11.8% 24.8% 24.8%
Race/Ethnicity: hispanic 4.4% 4.4% 5.0% 4.4% 6.4% 6.4%
  1. Differences were not significant at α = 0.05
  2. Source: Dobson | DaVanzo analysis of custom cohort Standard Analytic Files (2011–2014) for Medicare beneficiaries who received O&P services from January 1, 2012 through June 30, 2013 (and matched comparisons), according to custom cohort database definition