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Table 2 Cross-classification of self-report and claims-based diabetes status

From: Identifying diabetics in Medicare claims and survey data: implications for health services research

  Medicare claims (%)
  Not diabetic Diabetic
Self-report (%)   
 Not diabetic 71.1 (1426) 7.7 (162)
 Diabetic 1.6 (34) 19.5 (406)
  1. Chi-square test statistic: 737.7; p < 0.05.
  2. Cohen’s Kappa statistic: 0.74.
  3. Parenthetical entries are sample sizes.
  4. Claims-based diabetics are defined as those who have ever triggered the CCW definition for diabetes.
  5. Sources: 2006 Health and Retirement Study (HRS); 2006 Medicare Beneficiary Annual Summary File.