Clinical Demographics

Clinical Demographics by Indication for Examination for 401,548 Diagnostic Mammography Examinations from 2007 - 2013

Based on BCSC data through 2013

  Work-Up of Abnormal Screening Exams Short-Interval Follow-Up Evaluation of Breast Problem/ No Lump or Lump Unknown Evaluation of Breast Problem/ Palpable Lump All Diagnostic Exams**
All examinations 

128,976

51,440

74,426

35,308

401,548
Age (y)

 

 

 

 

 
18-39 

5,266 (4.1)

2,412 (4.7)

10,242 (13.8)

9,508 (26.9)

36,768 (9.2) 
40-44 

19,804 (15.4)

6,747 (13.1)

9,142 (12.3)

5,770 (16.3)

57,762 (14.4) 
45-49 

20,787 (16.1)

7,756 (15.1)

10,073 (13.5)

5,698 (16.1)

62,621 (15.6) 
50-54 

19,568 (15.2)

7,855 (15.3)

9,950 (13.4)

4,190 (11.9)

58,870 (14.7) 
55-59 

16,900 (13.1)

6,967 (13.5)

8,904 (12.0)

2,973 (8.4)

49,748 (12.4) 
60-64 

15,214 (11.8)

6,398 (12.4)

8,061 (10.8)

2,339 (6.6)

43,333 (10.8) 
65-69 

12,234 (9.5)

5,064 (9.8)

6,443 (8.7)

1,750 (5.0)

34,787 (8.7) 
70-74 

8,179 (6.3)

3,527 (6.9)

4,580 (6.2)

1,099 (3.1)

24,009 (6.0) 
75-79 

5,768 (4.5)

2,470 (4.8)

3,228 (4.3)

822 (2.3)

16,984 (4.2) 
80+ 

5,256 (4.1)

2,244 (4.4)

3,803 (5.1)

1,159 (3.3)

16,666 (4.2) 
Mean (y) 

55.9

56.5

54.6

48.8

54.8 
Median (y) 

54

55

53

46

53 
Family history of breast cancer 
Yes 

21,824 (16.9)

9,418 (18.3)

14,478 (19.5)

5,508 (15.6)

55,182 (13.7) 
No or unknown 

107,152 (83.1)

42,022 (81.7)

59,948 (80.5)

29,800 (84.4)

346,366 (86.3) 
Personal history of breast cancer
Yes 

14,797 (11.5)

10,820 (21.0)

18,142 (24.4)

2,078 (5.9)

63,450 (15.8) 

No or unknown 

114,179 (88.5)

40,620 (79.0)

56,284 (75.6)

33,230 (94.1)

338,098 (84.2) 

Previous mammography performed 
Yes 

126,464 (98.1)

50,825 (98.8)

62,691 (84.2)

25,324 (71.7)

369,362 (92.0) 

No or unknown 

2,512 (1.9)

615 (1.2)

11,735 (15.8)

9,984 (28.3)

32,186 (8.0) 

Note:   Numbers in parentheses are percentages.

**  Includes 94,228 exams from one registry for which sub-classification of diagnostic indication(e.g., additional evaluation, short interval follow-up, etc.) was not available.

Table numbers last updated Mar 26, 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/."