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 the National Cancer Institute (P01CA154292). Downloaded xx/xx/xxxx from the Breast Cancer Surveillance Consortium Web site - http://www.bcsc-research.org/."