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Table 3 Proportions of agreement and disagreement between patients questionnaire and general practitioners information regarding incident cardiovascular endpoints

From: Cardiac late events in German breast cancer patients: a validation study on the agreement between patient self-reports and information from physicians

Disease GPa, negative
Pb negative
(Agreement)
GP, positive
P positive
(Agreement)
GP positive
P negative
(Underreporters)
GP negative
P positive
(Overreporters)
Kappa CCRc
Stroke 968 (96.9%) 14 (1.40%) 7 (0.70%) 10 (1.00%) 0.61 98.3%
Myocardial infarction 1003 (99.2%) 3 (0.30%) 1 (0.10%) 4 (0.40%) 0.54 99.5%
Angina pectoris 935 (95.0%) 14 (1.42%) 28 (2.83%) 11 (1.11%) 0.40 96.1%
Valvular heart disease 913 (93.7%) 16 (1.64%) 34 (3.50%) 11 (1.13%) 0.39 95.4%
Arrythmia 836 (88.8%) 27 (2.87%) 41 (4.36%) 37 (3.93%) 0.37 91.7%
Congestive heart failure 905 (93.5%) 14 (1.45%) 21 (2.17%) 28 (2.89%) 0.34 94.9%
  1. aP patients’ questionnaire
  2. bGP general practitioners’ information
  3. cCCR correct classification rate