Utilization of accelerated partial breast irradiation for ductal carcinoma in situ, 2003-2011: report from the national cancer database

Data on recent trends and correlates of utilization for accelerated partial breast irradiation using brachytherapy (APBI-b) for ductal carcinoma in situ (DCIS) are lacking. This study included 113,841 DCIS patients from the National Cancer Data Base, of whom 8,709 (6.5 %) underwent APBI-b and 105,132 (93.5 %) underwent external beam irradiation after lumpectomy between 2003 and 2011. Trends in APBI-b use, American Society for Radiation Oncology (ASTRO) guideline concordance, and independent factors related to APBI-b use were examined. APBI-b use increased from 1.6 % in 2003 to 11.9 % in 2008 and then decreased to 9.1 % in 2011 (p