Muddy water? Variation in reporting receipt of breast cancer radiation therapy by population-based tumor registries
| Autor: | Patricia Anderson, Gary V. Walker, Jiangong Niu, Benjamin Smith, Francis P. Boscoe, Maria J. Schymura, Thomas A. Buchholz, Jing Jiang, Amber H. Sinclair, Brad Wohler, Melanie Williams, Jill MacKinnon, Sharon H. Giordano |
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| Rok vydání: | 2012 |
| Předmět: |
Oncology
Cancer Research medicine.medical_specialty medicine.medical_treatment Population New York Breast Neoplasms Population based Logistic regression Medicare Sensitivity and Specificity Article Breast cancer Internal medicine Epidemiology medicine Humans Radiology Nuclear Medicine and imaging Registries education Aged Receipt Aged 80 and over education.field_of_study Radiation Chi-Square Distribution business.industry Clinical Coding medicine.disease Texas United States Surgery Radiation therapy Florida Female business Chi-squared distribution SEER Program |
| Zdroj: | International journal of radiation oncology, biology, physics. 86(4) |
| ISSN: | 1879-355X |
| Popis: | To evaluate, in the setting of breast cancer, the accuracy of registry radiation therapy (RT) coding compared with the gold standard of Medicare claims.Using Surveillance, Epidemiology, and End Results (SEER)-Medicare data, we identified 73,077 patients aged ≥66 years diagnosed with breast cancer in the period 2001-2007. Underascertainment (1 - sensitivity), sensitivity, specificity, κ, and χ(2) were calculated for RT receipt determined by registry data versus claims. Multivariate logistic regression characterized patient, treatment, and geographic factors associated with underascertainment of RT. Findings in the SEER-Medicare registries were compared with three non-SEER registries (Florida, New York, and Texas).In the SEER-Medicare registries, 41.6% (n=30,386) of patients received RT according to registry coding, versus 49.3% (n=36,047) according to Medicare claims (P.001). Underascertainment of RT was more likely if patients resided in a newer SEER registry (odds ratio [OR] 1.70, 95% confidence interval [CI] 1.60-1.80; P.001), rural county (OR 1.34, 95% CI 1.21-1.48; P.001), or if RT was delayed (OR 1.006/day, 95% CI 1.006-1.007; P.001). Underascertainment of RT receipt in SEER registries was 18.7% (95% CI 18.6-18.8%), compared with 44.3% (95% CI 44.0-44.5%) in non-SEER registries.Population-based tumor registries are highly variable in ascertainment of RT receipt and should be augmented with other data sources when evaluating quality of breast cancer care. Future work should identify opportunities for the radiation oncology community to partner with registries to improve accuracy of treatment data. |
| Databáze: | OpenAIRE |
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