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17.09.2016 | Epidemiology | Ausgabe 1/2016

Breast Cancer Research and Treatment 1/2016

Patterns of multidisciplinary care in the management of non-metastatic invasive breast cancer in the United States Medicare patient

Breast Cancer Research and Treatment > Ausgabe 1/2016
Thomas M. Churilla, Brian L. Egleston, Colin T. Murphy, Elin R. Sigurdson, Shelly B. Hayes, Lori J. Goldstein, Richard J. Bleicher
Wichtige Hinweise

Electronic supplementary material

The online version of this article (doi:10.​1007/​s10549-016-3982-x) contains supplementary material, which is available to authorized users.
Presented, in part, at the 2015 San Antonio Breast Cancer Symposium, San Antonio, TX.
An erratum to this article can be found at http://​dx.​doi.​org/​10.​1007/​s10549-016-4023-5.



Multidisciplinary care (MDC) in managing breast cancer is resource-intensive and growing in prevalence anecdotally, although care patterns are poorly characterized. We sought to determine MDC patterns and effects on care in the United States Medicare patient.


Patients diagnosed with non-metastatic invasive breast cancer from 1992–2009 were reviewed using the Survival, Epidemiology, and End Results (SEER)-Medicare linked dataset. MDC was defined as a post-diagnosis, preoperative visit with a surgical, medical, and radiation oncologist. Same-day MDC (MDCSD) was the MDC subset having all three visits on one date.


Among 88,865 patients, MDC was utilized in 2.9 %, with 14.1 % of these having MDCSD. MDC use did not vary by stage, but MDC patients were more likely to be younger, black, receive lumpectomy, have fewer nodes examined, and receive radiotherapy. MDCSD patients were more likely than non-MDC patients to be black, receive mastectomy, and receive radiotherapy. MDC and MDCSD use increased over time and varied by geographic region, with rural patients less likely to receive MDC (OR 0.54 [95 % CI 0.45–0.65]) and MDCSD (OR 0.32 [95 % CI 0.19–0.54]). Radiotherapy after breast conserving surgery, used in 86.5 % of non-MDC patients, was administered to 90.2 % of MDC (p = 0.001) and 92.6 % of MDCSD (p = 0.019) patients. Post-mastectomy radiotherapy was administered in 52.0 % of non-MDC patients, 63.8 % of MDC (p = 0.050), and 89.1 % of MDCSD (p = 0.298) after propensity score adjustment.


While increasing, few Medicare patients undergo MDC and MDCSD is rare. MDC may improve quality and MDCSD should be considered for patient convenience. While not yet widespread, efforts should integrate MDC and MDCSD across the U.S.

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