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Table 3 Agreement for presence of selected comorbidities between medical chart and self-reported comorbidity questionnaire (SCQ) (n = 121)

From: (Dis)concordance of comorbidity data and cancer status across administrative datasets, medical charts, and self-reports

Comorbidity

Medical chart Present, n (%)

SCQ data Present, n (%)

Percentage agreement

%, (95% CI)

κ statistic

(95% CI)

Heart disease

2 (1.6)

9 (7.4)

93 (88–97)

0.16 (−0.15–0.46)

Diabetes

9 (7.4)

10 (8.3)

96 (92–99)

0.71 (0.47–0.96)

Liver disease

1 (0.8)

1 (0.8)

98 (96–100)

−0.01 (− 0.02–0.00)

Cancer

121 (100)

31 (25.6)

26 (18–34)

0 (0–0)

Rheumatic diseasea

2 (1.7)

7 (5.8)

94 (90–98)

0.20 (−0.16–0.57)

Ulcer or stomach disease

1 (0.8)

4 (3.3)

96 (92–99)

−0.01 (− 0.04–0.01)

Renal disease

3 (2.5)

1 (0.8)

97 (93–100)

−0.01 (− 0.03–0.01)

Chronic pulmonary disease

12 (9.9)

5 (4.1)

91 (86–96)

0.31 (0.01–0.61)

High blood pressure

56 (46.3)

51 (42.2)

84 (78–91)

0.68 (0.55–0.81)

Anaemia or other blood disease

6 (5.0)

3 (2.5)

96 (92–99)

0.43 (0.01–0.84)

Depression

6 (5.0)

17 (14.1)

88 (82–94)

0.30 (0.04–0.55)

Back pain

4 (3.3)

38 (31.4)

72 (64–80)

0.14 (0.01–0.27)

Osteoarthritis/degenerative arthritis

14 (11.6)

26 (21.5)

75 (67–83)

0.12 (−0.08–0.31)

Total count

237

203

  
  1. asame as connective tissue disorders