Benchmarks
for Cancers by Indication for Examination for Diagnostic Mammography Examinations
from 1996 - 2005
| |
Work-Up of Abnormal Screening Examination |
Short-Interval Follow-Up |
Evaluation of Breast Problem/ No Lump or Lump Unknown |
Evaluation of Breast Problem/ Palpable Lump |
All Diagnostic Examinations |
| Cancer
diagnosis rate (per 1000) |
40.8 |
8.9 |
18.9 |
57.7 |
30.0 |
| Readers with 100+ examinations |
318 |
275 |
284 |
243 |
482 |
| Cancers |
7,228 |
1,225 |
3,031 |
5,349 |
18,121 |
| All examinations |
176,943 |
137,639 |
160,189 |
92,764 |
604,365 |
| CDR (Median-50th percentile) |
34.8 |
8.7 |
17.2 |
54.7 |
27.9 |
| CDR (25th, 75th percentiles) |
23.3, 48.1 |
4.4, 12.8 |
9.8, 26.8 |
43, 72 |
21.2, 34.9 |
| CDR (10th, 90th percentiles) |
16.5, 66.3 |
0, 17.7 |
4.4, 37.4 |
28.3, 84.3 |
13.3, 45.8 |
| Invasive
cancer size |
|
|
|
|
|
| Readers with 5+ invasive cancers (known size) |
204 |
42 |
122 |
254 |
364 |
| Cancers |
4,169 |
363 |
1,971 |
4,662 |
12,510 |
| Mean tumor size in mm (Median - 50th percentile) |
15.6 |
15.4 |
22.9 |
25.7 |
21.1 |
| Mean tumor size in mm (25th, 75th percentiles) |
13.3, 17.7 |
12.3, 16.8 |
19.6, 27.0 |
23.0, 29.9 |
18.1, 24.4 |
| Mean tumor size in mm (10th and 90th percentile) |
11.6, 19.9 |
10.2, 20.5 |
16.3, 32.2 |
20.1, 35.4 |
15.8, 29.3 |
| Median tumor size in mm (Median - 50th percentile) |
12.0 |
12.0 |
19.0 |
21.8 |
17.0 |
| Median tumor size in mm (25th, 75th percentiles) |
11, 15 |
10, 15 |
16, 22 |
19.5, 25 |
15, 20 |
| Median tumor size in mm (10th, 90th percentiles) |
10, 16 |
8, 17 |
13.5, 25 |
17, 30 |
13, 25 |
| %Minimal
cancer |
58.1 |
63.7 |
33.1 |
15.2 |
39.8 |
| Readers with 5+ cancers (DCIS/invasive size known) |
257 |
78 |
138 |
262 |
393 |
| Minimal cancers |
3,771 |
489 |
821 |
770 |
6,456 |
| Total cancers (DCIS/invasive size known) |
6,486 |
768 |
2,484 |
5,074 |
16,220 |
| %Minimal cancer (Median - 50th percentile) |
58.9 |
62.5 |
28.6 |
14.3 |
38.8 |
| %Minimal cancer (25th, 75th percentiles) |
50.0, 68.2 |
50.0, 71.4 |
18.2, 40.0 |
2.9, 20.0 |
28.6, 49.2 |
| %Minimal cancer (10th, 90th percentiles) |
40.0, 80.0 |
37.5, 85.7 |
8.3, 50.0 |
0, 28.6 |
17.6, 57.1 |
| %Node
negative (invasive cancers only) |
79.6 |
80.7 |
63.0 |
57.9 |
68.2 |
| Readers with 5+ invasive cancers (known nodal status) |
229 |
50 |
132 |
267 |
387 |
| Node negative invasive cancers |
3,778 |
343 |
1,396 |
2,969 |
9,472 |
| Total invasive cancers (known nodal status) |
4,746 |
425 |
2,217 |
5,124 |
13,890 |
| %Node negative cancer (Median - 50th percentile) |
80.8 |
80.0 |
62.2 |
58.3 |
66.9 |
| %Node negative cancer (25th, 75th percentiles) |
71.4, 87.5 |
71.4, 85.7 |
53.4, 71.4 |
50.0, 66.7 |
60.0, 76.0 |
| %Node negative cancer (10th, 90th percentiles) |
60.6, 100 |
60.0, 100 |
42.9, 80.0 |
37.5, 80.0 |
50.0, 84.6 |
| %Stage
0 or I |
78.8 |
79.7 |
53.0 |
37.0 |
60.7 |
| Readers with 5+ cancers (known stage) |
261 |
71 |
139 |
252 |
389 |
| Stage 0 or I cancers |
5,111 |
573 |
1,286 |
1,780 |
9,597 |
| Total cancers (known stage) |
6,487 |
719 |
2,427 |
4,811 |
15,817 |
| %Stage 0 or I cancer (Median - 50th percentile) |
80.0 |
80.0 |
52.9 |
37.5 |
61.2 |
| %Stage 0 or I cancer (25th, 75th percentiles) |
72.7, 87.5 |
66.7, 88.2 |
40.0, 60.0 |
27.0, 44.8 |
51.6, 68.6 |
| %Stage 0 or I cancer (10th, 90th percentiles) |
63.6, 100 |
60.0, 100 |
32.4, 71.4 |
19.0, 55.0 |
41.9, 80.0 |
*
Includes examinations for radiologists with minimum numbers of cases in
a given column as designated; excludes examinations for which the radiologist
is unknown.
† The number of radiologists in
this column does not equal the sum of radiologists in the other column
because a given radiologist may contribute to each of the preceding columns,
but may contribute to this column only once.
‡ Minimal cancer = DCIS
or invasive cancer <= 10 mm.
The following source must be cited when reproducing this table: NCI-funded Breast
Cancer Surveillance Consortium co-operative agreement (U01CA63740, U01CA86076, U01CA86082,
U01CA63736, U01CA70013, U01CA69976, U01CA63731, U01CA70040). Downloaded xx/xx/xx from the
Breast Cancer Surveillance Consortium Web site - http://breastscreening.cancer.gov/data/benchmarks/diagnostic/table6.html
[Return to Performance Benchmarks for Diagnostic Mammography]
|
