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Table 1 Demographic Characteristics of Medicare and Medicaid Study Samples (2011)

From: Association between physician adoption of a new oral anti-diabetic medication and Medicare and Medicaid drug spending

Characteristic Medicare (N = 125,264) Characteristic Medicaid (N = 50,836)
Age (Mean, SD) 72.1 (12.0) Age (Mean, SD) 50.2 (10.1)
Female (N, %) 74,427 (59.4) Female (N, %) 31,038 (61.1)
Race/Ethnicity (N, %)   Race/Ethnicity (N, %)  
White 105,987 (84.6) White 25,498 (50.2)
Black 11,481 (9.2) Black 15,341 (30.2)
Hispanic 4622 (3.7) Hispanic 7476 (14.7)
Other race 3174 (2.5) Other race 2521 (5.0)
Eligibility Type (N,%)   Eligibility Type (N, %)  
Dual Eligible 47,607 (38.1) General Assistance 6655 (13.1)
Low Income Subsidy 56,358 (44.9) Supplemental Security Income 38,076 (74.9)
Disabled 24,910 (19.9) TANFa 5720 (11.3)
Type of Drug use (N,%)   Type of Drug use (N, %)  
Oral drug only 80,652 (64.4) Oral drug only 27,436 (54.0)
Injectable drug only 20,336 (16.2) Injectable drug only 9021 (17.8)
Combination Treatment 24,276 (19.4) Combination Treatment 14,379 (28.3)
Elixhauser (Mean, SD) 5.6 (2.9) Elixhauser (Mean, SD) 4.7 (2.7)
Drug Spending (Mean, SD) $1340 ($1764) Drug Spending (Mean, SD) $1291 ($1881)
  1. aTANF Temporary Assistance for Needy Families
  2. Data sources: Medicare data from CMS, Medicaid data from PADHS