Validation of self-reported comorbidity status of breast cancer patients with medical records: the California Breast Cancer Survivorship Consortium (CBCSC).

Cancer Causes & Control : CCC
Cheryl VigenAnna H Wu

Abstract

To compare information from self-report and electronic medical records for four common comorbidities (diabetes, hypertension, myocardial infarction, and other heart diseases). We pooled data from two multiethnic studies (one case-control and one survivor cohort) enrolling 1,936 women diagnosed with breast cancer, who were members of Kaiser Permanente Northern California. Concordance varied by comorbidity; kappa values ranged from 0.50 for other heart diseases to 0.87 for diabetes. Sensitivities for comorbidities from self-report versus medical record were similar for racial/ethnic minorities and non-Hispanic Whites, and did not vary by age, neighborhood socioeconomic status, or education. Women with a longer history of comorbidity or who took medications for the comorbidity were more likely to report the condition. Hazard ratios for all-cause mortality were not consistently affected by source of comorbidity information; the hazard ratio was lower for diabetes, but higher for the other comorbidities when medical record versus self-report was used. Model fit was better when the medical record versus self-reported data were used. Comorbidities are increasingly recognized to influence the survival of patients with breast or other c...Continue Reading

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Citations

Apr 21, 2019·Injury Prevention : Journal of the International Society for Child and Adolescent Injury Prevention·Stella SamoborecSue Evans
May 17, 2019·International Journal of Environmental Research and Public Health·Shervin AssariMohsen Bazargan
Sep 14, 2020·Healthcare : the Journal of Delivery Science and Innovation·Antonia V BennettLesley H Curtis
Jun 17, 2020·Value in Health : the Journal of the International Society for Pharmacoeconomics and Outcomes Research·Arvind OemrawsinghRegan W Bergmark
Oct 15, 2021·Postgraduate Medical Journal·Chung Mun Alice LinDavid J Deehan

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