EP&I


Open Access Methodology

A method to predict breast cancer stage using Medicare claims

Grace L Smith1, Ya-Chen T Shih2, Sharon H Giordano3, Benjamin D Smith1,4 and Thomas A Buchholz1*

Author Affiliations

1 Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd Houston, Texas 77030, USA

2 Department of Biostatistics, Section of Health Services Research, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, Texas 77030, USA

3 Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, Texas 77030, USA

4 Radiation Oncology Flight, Wilford Hall Medical Center, Lackland Air Force Base, San Antonio, Texas 78236, USA

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Epidemiologic Perspectives & Innovations 2010, 7:1 doi:10.1186/1742-5573-7-1

Published: 15 January 2010

Additional files

Additional file 1:

Table S1. Candidate Covariates and Claims Codes. Table S2. Prediction Equations. Parameter estimates for stage IV versus stages I-III disease and for stage. I/II versus stage III disease. Table S3. Test Characteristics After Applying Prediction Equations on Validation Set Samples.

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