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Table 3 Individual Comorbidity Item Agreement

From: "Concordance between comorbidity data from patient self-report interviews and medical record documentation"

Comorbid Condition

Charlson Medical Record N Yes (%)

Katz Self-report N Yes (%)

Kappa (95% CI)

Overall Percent Agreement*

P-Value of McNemar's test

Prior AMI/Heart attack

126 (24)

154 (29.33)

0.63 (0.56, 0.70)

86

<0.01

Congestive heart failure

150 (28.6)

95 (18.1)

0.09 (0.01, 0.18)

67

< .01

Peripheral vascular disease

28 (5.3)

37 (7.1)

0.43 (0.27, 0.58)

93

0.13

Cerebrovascular disease

31 (5.9)

56 (10.7)

0.54 (0.41, 0.67)

93

< 0.01

Chronic pulmonary Disease/Asthma bronchitis

45 (8.6)

59 (11.2)

0.43 (0.30, 0.55)

90

0.06

Renal/Kidney disease

24 (4.6)

17 (3.2)

0.47 (0.28, 0.66)

96

0.13

Diabetes

116 (22.1)

142 (27.1)

0.80 (0.72, 0.86)

92

< 0.01

Diabetes with end-organ damage

23 (4.4)

26 (5.0)

0.42 (0.24, 0.60)

95

0.56

Hemiparesis

3 (0.6)

24 (4.6)

0.14 (-0.04, 0.32)

96

<0.01

Ulcer disease

30 (5.7)

74 (14.1)

0.29 (0.17, 0.41)

87

< 0.01

Connective Tissue Disorder/Arthritis-Rheum. Arthritis

5 (1.0)

92 (17.5)

0.07 (0.00, 0.13)

83

< 0.01

Dementia

0 (0)

4 (0.8)

   

Any type of cancer

26 (5.0)

44 (8.4)

0.33 (0.18, 0.48)

92

<.01

Liver Disease (mild to moderate)

1 (0.2)

3 (0.6)

 

99

 
  1. * overall percent agreement was defined as the number of concordant counts (both answered "yes" or both answered "no" in two sources) divided by the total sample size and expressed as a percent.