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

Cancers for 4,032,556 Screening 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:
  All Screening Examinations
All Cancers* 19,156
Cancer detection rate (per 1000) 4.8
Cancer histology  
DCIS 4,301 (22.5)
All invasive 14,855 (77.5)
Invasive cancer size  
Invasive, 1-5 mm 1,402 (10.5)
Invasive, 6-10 mm 3,432 (25.8)
Invasive, 11-15 mm 3,479 (26.2)
Invasive, 16-20 mm 1,977 (14.9)
Invasive, >20 mm 3,014 (22.7)
Invasive, size unknown 1,551
Invasive, mean size (mm) 17.5
Invasive, median size (mm) 14.0
Minimal cancer§ 9,135 (51.9)
Axillary lymph node status (invasive cancers)||  
Node negative 10,754 (76.8)
Node positive 3,246 (23.2)
Nodal status unknown 855
Cancer stage#  
Stage 0 4,301 (25.1)
Stage I 8,421 (49.1)
Stage II 3,873 (22.6)
Stage III 403 (2.3)
Stage IV 169 (1.0)
Stage unknown 1,989

Notes

Numbers are frequencies unless otherwise indicated.

*  Cancers = The number of cancers diagnosed within 1 year following an examination with an abnormal interpretation (BI-RADS 0,4,5, or 3 with a recommendation for immediate work-up).

 Numbers in parentheses are percentages of all cancers

 Numbers in parentheses are percentages of invasive cancers of known size

§  Minimal cancer = DCIS or invasive cancer ≤ 10 mm; numbers in parentheses are percentages of DCIS + invasive cancer of known size

||  Numbers in parentheses are percentages of invasive cancers of known nodal status

#  Numbers in parentheses are percentages of DCIS + invasive cancers of known stage

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/screening/2007/table4.html .

[Return to Performance Benchmarks for Screening Mammography]