Studying Radiation Therapy Using SEER-Medicare-Linked Data
- 1 August 2002
- journal article
- Published by Ovid Technologies (Wolters Kluwer Health) in Medical Care
- Vol. 40 (Supplement)
- https://doi.org/10.1097/00005650-200208001-00007
Abstract
Background. Numerous studies have used the SEER or Medicare data to assess the use of radiation therapy. However, the completeness of these data has not been evaluated. Methods. Using linked SEER-Medicare data, a cohort was created that included incident cases of breast, endometrial, lung, prostate, or rectal cancer from 1991 to 1996 in persons 65 years and older. For each of these cases, use of radiation therapy as an initial course of treatment reported from the SEER data was compared with use of radiation therapy in the months following diagnosis, as determined from the Medicare claims. Results. Overall, there was a high agreement between SEER and Medicare sources for use of radiation therapy. Agreement was 88% for lung cancer, 93% for prostate cancer, 94% for rectal and breast cancers, and 95% for endometrial cancer. Within the Medicare files, radiation claims were found in MedPAR Physician Supplier Part B and Outpatient files. Conclusions. There is a high level of agreement between SEER and Medicare reporting of radiation treatments after a cancer diagnosis, suggesting that either source can be used to assess radiation-related treatment patterns. However, for the most complete ascertainment of radiation use, both SEER and Medicare sources should be used.Keywords
This publication has 7 references indexed in Scilit:
- Population-based study of microinvasive adenocarcinoma of the uterine cervixObstetrics & Gynecology, 2001
- Determining the Quality of Breast Cancer Care: Do Tumor Registries Measure Up?Annals of Internal Medicine, 2000
- Temporal and regional variation in the use of breast-conserving surgery and radiotherapy for older women with early-stage breast cancer from 1983 to 1995.The Journals of Gerontology, Series A: Biological Sciences and Medical Sciences, 1999
- Breast conservation therapy in the United States following the 1990 National Institutes of Health Consensus Development Conference on the treatment of patients with early stage invasive breast carcinomaCancer, 1999
- Information on Radiation Treatment in Patients with Breast Cancer: The Advantages of the Linked Medicare and SEER DataJournal of Clinical Epidemiology, 1999
- Stage at Diagnosis and Treatment Patterns Among Older Women With Breast CancerJama-Journal Of The American Medical Association, 1999
- Dissemination of Clinical ResultsMedical Care, 1996