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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

Ā 

Medicare claims (%)

Ā 

Not diabetic

Diabetic

Self-report (%)

Ā Ā 

ā€‚Not diabetic

71.1 (1426)

7.7 (162)

ā€‚Diabetic

1.6 (34)

19.5 (406)

  1. Chi-square test statistic: 737.7; pā€‰<ā€‰0.05.
  2. Cohenā€™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.