Clinical Demographics

Clinical Demographics for 1,682,504 Screening Mammography Examinations from 2007 - 2013

Based on BCSC data through 2013

  Number of Screening Exams (%)
All Exams 1,682,504
Age (years)
18-39 41,479 (2.5)
40-44 207,744 (12.3)
45-49 240,843 (14.3)
50-54 256,129 (15.2)
55-59 249,687 (14.8)
60-64 223,191 (13.3)
65-69 173,752 (10.3)
70-74 122,091 (7.3)
75-79 87,656 (5.2)
80+ 79,932 (4.8)
Mean (y) 57.5
Median (y) 56.0
Family history of breast cancer
Yes 235,882 (16.9)
No 1,163,946 (83.1)
Unknown 282,676
Personal history of breast cancer
Yes 61,628 (5.1)
No 1,156,765 (94.9)
Unknown 464,111
Previous mammography performed (in last 4 years)
Yes 1,543,046 (96.3)
No 59,766 (3.7)
Unknown 79,692
Self-report of Symptoms
Yes 22,890 (1.7)
No 1,292,619 (98.3)
Unknown 366,995

Notes: Numbers in parentheses are percentages based on non-missing values. 

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.

Self-report of symptoms includes lump, discharge and other symptoms, but does not include pain.

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/."