Cancer Rate (per 1,000 examinations) and Cancer Detection Rate (per 1,000 examinations) for 273,601 Diagnostic Mammography Examinations from 1996 to 2007 by Age & Time (Months) Since Previous Mammography
|
Number of screening mammography examinations1 |
Number of cancers2 |
Cancer rate (per 1,000 examinations)3 |
Cancer detection rate (per 1,000 examinations)4 |
| Age 40-44 |
48,074 |
1,197 |
24.89 |
19.99 |
| <=15 months |
23,833 |
485 |
20.34 |
14.76 |
| 16-20 months |
4,771 |
85 |
17.81 |
13.20 |
| 21-27 months |
4,496 |
111 |
24.68 |
20.01 |
| 28+ months |
8,706 |
226 |
25.95 |
22.28 |
| No previous mammography |
6,268 |
290 |
46.26 |
41.79 |
| Age 45-49 |
51,655 |
1,661 |
32.15 |
25.82 |
| <=15 months |
29,863 |
783 |
26.21 |
19.15 |
| 16-20 months |
5,522 |
143 |
25.89 |
20.10 |
| 21-27 months |
5,140 |
152 |
29.57 |
23.73 |
| 28+ months |
8,566 |
373 |
43.54 |
38.64 |
| No previous mammography |
2,564 |
210 |
81.90 |
77.22 |
| Age 50-54 |
45,096 |
1,621 |
35.94 |
28.58 |
| <=15 months |
30,545 |
915 |
29.95 |
22.49 |
| 16-20 months |
4,582 |
146 |
31.86 |
26.18 |
| 21-27 months |
3,502 |
126 |
35.97 |
28.55 |
| 28+ months |
5,248 |
304 |
57.92 |
50.11 |
| No previous mammography |
1,219 |
130 |
106.64 |
97.62 |
| Age 55-59 |
34,577 |
1,424 |
41.18 |
33.63 |
| <=15 months |
24,983 |
820 |
32.82 |
25.25 |
| 16-20 months |
3,274 |
118 |
36.04 |
30.23 |
| 21-27 months |
2,296 |
108 |
47.03 |
40.06 |
| 28+ months |
3,279 |
248 |
75.63 |
67.09 |
| No previous mammography |
745 |
130 |
174.49 |
162.41 |
| Age 60-64 |
26,584 |
1,156 |
43.48 |
34.15 |
| <=15 months |
19,815 |
705 |
35.57 |
25.88 |
| 16-20 months |
2,343 |
83 |
35.42 |
30.72 |
| 21-27 months |
1,639 |
73 |
44.53 |
35.99 |
| 28+ months |
2,146 |
178 |
82.94 |
73.15 |
| No previous mammography |
641 |
117 |
182.52 |
166.92 |
| Age 65-69 |
22,477 |
1,118 |
49.73 |
40.08 |
| <=15 months |
16,918 |
662 |
39.12 |
29.19 |
| 16-20 months |
1,844 |
66 |
35.79 |
28.74 |
| 21-27 months |
1,331 |
85 |
63.86 |
54.09 |
| 28+ months |
1,787 |
181 |
101.28 |
91.77 |
| No previous mammography |
597 |
124 |
207.70 |
197.65 |
| Age 70-74 |
19,169 |
1,078 |
56.23 |
47.57 |
| <=15 months |
14,298 |
580 |
40.56 |
31.40 |
| 16-20 months |
1,583 |
72 |
45.48 |
39.79 |
| 21-27 months |
1,145 |
69 |
60.26 |
57.64 |
| 28+ months |
1,565 |
202 |
129.07 |
118.84 |
| No previous mammography |
578 |
155 |
268.16 |
256.05 |
| Age 75-89 |
25,969 |
1,945 |
74.89 |
64.57 |
| <=15 months |
17,667 |
803 |
45.45 |
35.65 |
| 16-20 months |
2,306 |
135 |
58.54 |
48.56 |
| 21-27 months |
1,791 |
142 |
79.28 |
73.14 |
| 28+ months |
2,977 |
489 |
164.25 |
153.17 |
| No previous mammography |
1,228 |
376 |
306.18 |
283.38 |
1 Diagnostic mammography examination: Mammography examinations indicated by the radiologist to be for evaluation of a breast problem.
2Cancers = The number of examinations with a tissue diagnosis of ductal carcinoma in situ or invasive cancer within 30 days prior to or 1 year following the examination.
3Cancer rate (per 1,000 examinations) = The number of cancers among 1,000 diagnostic mammography examinations.
4 Cancer detection rate (per 1,000 examinations) = The number of cancers among 1,000 diagnostic mammography examinations with a positive interpretation (BI-RADS category 0 or 3 with a recommendation for biopsy, 4, or 5).
[Return to Diagnostic Performance]
|
