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An Assessment of the Primary Payer Variable among Breast and Colorectal Cancer Cases in the Massachusetts Cancer
Abstract:
The Massachusetts Cancer Registry (MCR) reviewed the medical charts of 5,348 randomly selected breast and colorectal cancer cases diagnosed from 2005 to 2009. The purpose of this study was to assess the reliability of primary payer at diagnosis in the MCR database and to examine primary payer and the first course of treatment of individual cancer patients. For the first period (2005-2006), private insurance (72.6% agreement) and Medicare (84.3% agreement) indicated strong agreement with kappa values of 0.62 and 0.72, respectively. Agreement for the later period was again stronger in the private insurance and Medicare categories (kappa= 0.63 and 0.74, respectively).
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