BCSC
Breast Cancer Surveillance Consortium: Working together to advance breast cancer research
 
Home   |   Data   |   Statistics   |   Tools   |   Collaborations   |   Work with Us   |   Publications   |   About   |   Links

Benchmarks for Cancers by Indication for Examination for Diagnostic Mammography Examinations from 1996 - 2005 --- based on BCSC data as of 2007*

You are viewing the 2007 collection of this data. Data from other times are also available:
  Work-Up of Abnormal Screening Examination Short-Interval Follow-Up Evaluation of Breast Problem/ No Lump or Lump Unknown Evaluation of Breast Problem/ Palpable Lump All Diagnostic Examinations
Cancer diagnosis rate (per 1000) 40.8 8.9 18.9 57.7 30.0
Readers with 100+ examinations 318 275 284 243 482
Cancers 7,228 1,225 3,031 5,349 18,121
All examinations 176,943 137,639 160,189 92,764 604,365
CDR (Median-50th percentile) 34.8 8.7 17.2 54.7 27.9
CDR (25th, 75th percentiles) 23.3, 48.1 4.4, 12.8 9.8, 26.8 43, 72 21.2, 34.9
CDR (10th, 90th percentiles) 16.5, 66.3 0, 17.7 4.4, 37.4 28.3, 84.3 13.3, 45.8
Invasive cancer size          
Readers with 5+ invasive cancers (known size) 204 42 122 254 364
Cancers 4,169 363 1,971 4,662 12,510
Mean tumor size in mm (Median - 50th percentile) 15.6 15.4 22.9 25.7 21.1
Mean tumor size in mm (25th, 75th percentiles) 13.3, 17.7 12.3, 16.8 19.6, 27.0 23.0, 29.9 18.1, 24.4
Mean tumor size in mm (10th and 90th percentile) 11.6, 19.9 10.2, 20.5 16.3, 32.2 20.1, 35.4 15.8, 29.3
Median tumor size in mm (Median - 50th percentile) 12.0 12.0 19.0 21.8 17.0
Median tumor size in mm (25th, 75th percentiles) 11, 15 10, 15 16, 22 19.5, 25 15, 20
Median tumor size in mm (10th, 90th percentiles) 10, 16 8, 17 13.5, 25 17, 30 13, 25
%Minimal cancer 58.1 63.7 33.1 15.2 39.8
Readers with 5+ cancers (DCIS/invasive size known) 257 78 138 262 393
Minimal cancers 3,771 489 821 770 6,456
Total cancers (DCIS/invasive size known) 6,486 768 2,484 5,074 16,220
%Minimal cancer (Median - 50th percentile) 58.9 62.5 28.6 14.3 38.8
%Minimal cancer (25th, 75th percentiles) 50.0, 68.2 50.0, 71.4 18.2, 40.0 2.9, 20.0 28.6, 49.2
%Minimal cancer (10th, 90th percentiles) 40.0, 80.0 37.5, 85.7 8.3, 50.0 0, 28.6 17.6, 57.1
%Node negative (invasive cancers only) 79.6 80.7 63.0 57.9 68.2
Readers with 5+ invasive cancers (known nodal status) 229 50 132 267 387
Node negative invasive cancers 3,778 343 1,396 2,969 9,472
Total invasive cancers (known nodal status) 4,746 425 2,217 5,124 13,890
%Node negative cancer (Median - 50th percentile) 80.8 80.0 62.2 58.3 66.9
%Node negative cancer (25th, 75th percentiles) 71.4, 87.5 71.4, 85.7 53.4, 71.4 50.0, 66.7 60.0, 76.0
%Node negative cancer (10th, 90th percentiles) 60.6, 100 60.0, 100 42.9, 80.0 37.5, 80.0 50.0, 84.6
%Stage 0 or I 78.8 79.7 53.0 37.0 60.7
Readers with 5+ cancers (known stage) 261 71 139 252 389
Stage 0 or I cancers 5,111 573 1,286 1,780 9,597
Total cancers (known stage) 6,487 719 2,427 4,811 15,817
%Stage 0 or I cancer (Median - 50th percentile) 80.0 80.0 52.9 37.5 61.2
%Stage 0 or I cancer (25th, 75th percentiles) 72.7, 87.5 66.7, 88.2 40.0, 60.0 27.0, 44.8 51.6, 68.6
%Stage 0 or I cancer (10th, 90th percentiles) 63.6, 100 60.0, 100 32.4, 71.4 19.0, 55.0 41.9, 80.0

Notes

Numbers are frequencies unless otherwise indicated.

* Includes examinations for radiologists with minimum numbers of cases in a given column as designated; excludes examinations for which the radiologist is unknown.

The number of radiologists in this column does not equal the sum of radiologists in the other column because a given radiologist may contribute to each of the preceding columns, but may contribute to this column only once.

Minimal cancer = DCIS or invasive cancer <= 10 mm.

Table numbers last updated September 19, 2007. The following source must be cited when reproducing this table: NCI-funded Breast Cancer Surveillance Consortium co-operative agreement (U01CA63740, U01CA86076, U01CA86082, U01CA63736, U01CA70013, U01CA69976, U01CA63731, U01CA70040). Downloaded xx/xx/xxxx from the Breast Cancer Surveillance Consortium Web site - http://breastscreening.cancer.gov/statistics/benchmarks/diagnostic/2007/table6.html

[Return to Performance Benchmarks for Diagnostic Mammography]