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Table 2 Unweighted prevalence and concordance measures for chronic diseases using health administrative and self-reported data

From: Ascertainment of chronic diseases using population health data: a comparison of health administrative data and patient self-report

Self-reported data Health administrative data   
Diabetes Yes No Total Kappa 0.80 (0.80, 0.81)
Yes 5,312 474 5,786 Sensitivity of self-report 0.73
No 1,867 77,848 79,715 Specificity of self-report 0.99
Total 7,179 78,322 85,501 Positive agreement 82%
(missing = 48)    Negative agreement 99%
  Prevalence HA vs. SR 8.4% vs. 6.8%
Stroke Yes No Total   
Yes 433 1,020 1,453 Kappa 0.36 (0.34, 0.39)
No 453 83,592 84,045 Sensitivity of self-report 0.49
Total 886 84,612 85,498 Specificity of self-report 0.99
(missing = 51)   Positive agreement 37%
  Negative agreement 99%
  Prevalence HA vs. SR 1.0% vs. 1.7%
Hypertension Yes No Total   
Yes 15,314 2,530 17,844 Kappa 0.66 (0.65, 0.66)
No 8,284 59,293 67,577 Sensitivity of self-report 0.65
Total 23,598 61,823 85,421 Specificity of self-report 0.96
(missing = 128)    Positive agreement 74%
    Negative agreement 92%
    Prevalence HA vs. SR 27.6% vs. 20.8%
AMI* Yes No Total   
Yes 732 1,326 2,058 Kappa 0.48 (0.45, 0.50)
No 213 54,799 55,012 Sensitivity of self-report 0.77
Total 945 56,125 57,070 Specificity of self-report 0.98
(missing = 74)    Positive agreement 49%
   Negative agreement 99%
   Prevalence HA vs. SR 1.7% vs. 3.6%
CHF* Yes No Total   
Yes 413 458 871 Kappa 0.33 (0.30, 0.35)
No 1,151 55,042 56,193 Sensitivity of self-report 0.26
Total 1,564 55,500 57,064 Specificity of self-report 0.99
(missing = 80)    Positive agreement 34%
   Negative agreement 99%
   Prevalence HA vs. SR 2.7% vs. 1.5%
Asthma Yes No Total   
Yes 4,620 2,742 7,362 Kappa 0.55 (0.54, 0.56)
No 3,730 74,417 78,147 Sensitivity of self-report 0.55
Total 8,350 77,159 85,509 Specificity of self-report 0.96
(missing = 40)    Positive agreement 59%
    Negative agreement 96%
    Prevalence HA vs. SR 9.8% vs. 8.6%
COPD (≥ 35 years) Yes No Total   
Yes 1,880 1,842 3,722 Kappa 0.29 (0.27, 0.30)
No 5,474 56,916 62,390 Sensitivity of self-report 0.26
Total 7,354 58,758 66,112 Specificity of self-report 0.97
(missing = 12)    Positive agreement 34%
    Negative agreement 94%
    Prevalence HA vs. SR 11.1% vs. 5.6%
  1. *For CCHS cycle 1.1 and 2.1 — assumes ‘no’ to heart disease also means ‘no’ to AMI or CHF.
  2. Abbreviations: AMI = acute myocardial infarction; CHF = congestive heart failure; COPD = chronic obstructive pulmonary disease; HA = health administrative data; SR = self-reported data.