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Table 2 Concordance of Patient Responses with Medical Chart Data when Examining Diagnostic Parameters of Disease, Shanghai, China, 2002-2006.

From: Concordance of self-reported and medical chart information on cancer diagnosis and treatment

Disease characteristic Number of observations aAgreement (%) Kappa Sensitivity % (95% CI) Specificity % (95% CI)
Diagnosing hospital 4,943 98.7 0.990 - -
Did you receive an operation? (Yes/No) 4,948 99.4 0.900b 100.0 (99.9-100.0) 3.2 (0.1-16.7)
Type of surgery conducted 4,917 94.0 0.530 - -
ER/PR c status 3,637 94.5 0.910 - -
Tumor position 4,948 98.2 0.970 - -
  1. a Percentage of women reporting the exact same response for a given question across both surveys.
  2. b Prevalence- and bias-adjusted Kappa.
  3. c ER: Estrogen receptor; PR: Progesterone receptor