Annelotte van Bommel

26 Table 2. Quality indicators for breast cancer health care in the NABON Breast Cancer Audit (NBCA) and mean percentages per year from 2011 to 2014. Discipline Indicator Pre-defined norm 2011 (n=12,562) 2012 (n=15,929) 2013 (n=16,451) 2014 a (n=11,985) P-value b Radiology BI-RADS classification used in radiology report >90% 97% 98% 98% 99% <0.001 Breast MRI in patients treated with neo-adjuvant chemotherapy n.a. f 83% 87% 89% <0.001 Breast MRI in patients treated with primary surgery n.a. f 28% 30% 31% <0.001 Pathology Pathology report as defined c >90% 83% 93% 97% 97% <0.001 HER-2 positive measurement 12% 15% 13% 13% <0.001 Estrogen positive measurement 83% 83% 85% 84% <0.001 Progesterone positive measurement 65% 67% 69% 69% <0.001 Surgery Tumor positive margins after first breast conserving surgery for invasive breast cancer after neo-adjuvant therapy c 5,0% 8,3% 6,5% 6,8% 0.193 Tumor positive margins after first primary breast conserving surgery for invasive breast cancer d <15% 5,9% 5,4% 4,8% 4,6% 0.007 Tumor positive margins after first primary breast conserving surgery for DCIS e <30% 25% 20% 22% 18% 0.002 Sentinel node procedure for pN0(i-) tumors, with more than 5 nodes excised <5% 2,3% 1,9% 1,9% 1,7% 0.274 Sentinel node procedure for pN0(i+) tumors, with more than 5 nodes excised <5% 4,6% 2,6% 1,9% 3,7% 0.123 Breast conserving surgery for invasive breast cancer without a re-intervention 94% 92% 93% 93% 0.004 Breast conserving surgery for DCIS without a re-intervention  85% 83% 82% 86% 0.054