Cancers for 1,682,504 Screening Mammography Examinations from 2007 - 2013
Based on BCSC data through 2013
|Number of Screening Exams (%)|
|Cancer detection rate (per 1000)||5.1|
|Invasive cancer size‡|
|Invasive, 1-5 mm||727 (12.7)|
|Invasive, 6-10 mm||1,461 (25.6)|
|Invasive, 11-15 mm||1,459 (25.5)|
|Invasive, 16-20 mm||840 (14.7)|
|Invasive, >20 mm||1,228 (21.5)|
|Invasive, size unknown||170|
|Invasive, mean size (mm)||15.9|
|Invasive, median size (mm)||13|
|Minimal cancer§||4,816 (57.7)|
|Axillary lymph node status (invasive cancers)|||
|Node negative||4,599 (79.4)|
|Node positive||1,190 (20.6)|
|Nodal status unknown||96|
|Stage 0||2,644 (31.6)|
|Stage I||3,784 (45.3)|
|Stage II||1,585 (19.0)|
|Stage III||289 (3.5)|
|Stage IV||52 (0.6)|
Numbers are frequencies unless otherwise indicated.
Screening Mammography Examinations: mammography examinations indicated by the radiologist to be for screening, with bilateral routine views
done and no other mammogram within the last 9 months, among women without breast implants.
* Cancers = The number of cancers diagnosed within 1 year following an examination with an abnormal initial interpretation
(BI-RADS 0, 4, or 5; Note: 3 with a recommendation for immediate follow-up was recoded as 0).
† 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 1-10 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 March 23, 2017 .
The following must be cited when reproducing this data:
"The Breast Cancer Surveillance Consortium and its data collection and sharing activities are funded by grants from the National Cancer Institute (P01CA154292, U54CA163303), Patient-Centered Outcomes Research Institute (PCS-1504-30370), and Agency for Health Research and Quality (R01 HS018366-01A1). Downloaded xx/xx/xxxx from the Breast Cancer Surveillance Consortium Web site - http://www.bcsc-research.org/. More information regarding the BCSC is available at: http://bcsc-research.org/."