Table 2.
Characteristics of included breast cancer patients
|
Category |
1989-1992 |
1993-1996 |
1997-2000 |
2001-2004 |
2005-2008 |
||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| n | % | n | % | n | % | n | % | n | % | ||
| |
|
Germany (Saarland) |
|||||||||
| overall |
|
2,564 |
|
2,877 |
|
3,118 |
|
3,354 |
|
3,494 |
|
| age |
15-49 years |
514 |
20.0 |
537 |
18.7 |
637 |
20.4 |
594 |
17.7 |
640 |
18.3 |
| |
50-69 years |
1,179 |
46.0 |
1,322 |
46.0 |
1,418 |
45.5 |
1,591 |
47.4 |
1,653 |
47.3 |
| |
> = 70 years |
871 |
34.0 |
1,018 |
35.4 |
1,063 |
34.1 |
1,169 |
34.9 |
1,201 |
34.4 |
| stage |
available |
1,811 |
70.6 |
2,353 |
81.8 |
2,665 |
85.5 |
2,898 |
86.4 |
2,839 |
81.3 |
| |
localized a |
694 |
38.3 |
1,043 |
44.3 |
1,260 |
47.3 |
1,448 |
50.0 |
1,411 |
49.7 |
| |
local/regional spread a |
912 |
50.4 |
1,082 |
46.0 |
1,143 |
42.9 |
1,179 |
40.7 |
1,186 |
41.8 |
| |
distant metastasis a |
205 |
11.3 |
228 |
9.7 |
262 |
9.8 |
271 |
9.4 |
242 |
8.5 |
| tumour size |
available |
2,013 |
78.5 |
2,513 |
87.3 |
2,872 |
92.1 |
3,120 |
93.0 |
3,127 |
89.5 |
| |
T1 a |
661 |
32.8 |
921 |
36.6 |
1,126 |
39.2 |
1,384 |
44.4 |
1,402 |
44.8 |
| |
T2 a |
953 |
47.3 |
1,116 |
44.4 |
1,249 |
43.5 |
1,249 |
40.0 |
1,293 |
41.3 |
| |
T3/4 a |
399 |
19.8 |
476 |
18.9 |
497 |
17.3 |
487 |
15.6 |
432 |
13.8 |
| microscopic confirmation |
2,418 |
94.3 |
2,761 |
96.0 |
3,018 |
96.8 |
3,251 |
96.9 |
3,397 |
97.2 |
|
| death certificate only notified |
82 |
3.2 |
62 |
2.2 |
52 |
1.7 |
59 |
1.8 |
79 |
2.3 |
|
| no follow-up available |
64 |
2.5 |
43 |
1.5 |
79 |
2.5 |
67 |
2.0 |
49 |
1.4 |
|
| |
|
US (SEER 9/13 regions b) |
|||||||||
| overall |
|
64,556 |
|
87,228 |
|
97,713 |
|
97,579 |
|
98,857 |
|
| age |
15-49 years |
15,314 |
23.7 |
21,103 |
24.2 |
23,124 |
23.7 |
23,592 |
24.2 |
23,731 |
24.0 |
| |
50-69 years |
27,007 |
41.8 |
36,641 |
42.0 |
42,501 |
43.5 |
44,147 |
45.2 |
46,914 |
47.5 |
| |
> = 70 years |
22,235 |
34.4 |
29,484 |
33.8 |
32,088 |
32.8 |
29,840 |
30.6 |
28,212 |
28.5 |
| stage |
available |
62,016 |
96.1 |
84,078 |
96.4 |
94,920 |
97.1 |
95,510 |
97.9 |
97,094 |
98.2 |
| |
localized a |
39,075 |
63.0 |
54,468 |
64.8 |
61,062 |
64.3 |
59,715 |
62.5 |
61,235 |
63.1 |
| |
local/regional spread a |
19,186 |
30.9 |
24,684 |
29.4 |
28,472 |
30.0 |
30,169 |
31.6 |
29,843 |
30.7 |
| |
distant metastasis a |
3,755 |
6.1 |
4,926 |
5.9 |
5,386 |
5.7 |
5,626 |
5.9 |
6,016 |
6.2 |
| tumour size |
available |
53,027 |
82.1 |
73,352 |
84.1 |
85,692 |
87.7 |
87,682 |
89.9 |
93,254 |
94.3 |
| |
T1 a |
33,518 |
63.2 |
47,364 |
64.6 |
55,847 |
65.2 |
56,038 |
63.9 |
56,522 |
60.6 |
| |
T2 a |
14,848 |
28.0 |
20,080 |
27.4 |
22,746 |
26.5 |
24,007 |
27.4 |
27,088 |
29.0 |
| |
T3/4 a |
4,661 |
8.8 |
5,908 |
8.1 |
7,099 |
8.3 |
7,637 |
8.7 |
9,644 |
10.3 |
| microscopic confirmation |
63,443 |
98.3 |
85,855 |
98.4 |
96,357 |
98.6 |
96,364 |
98.8 |
97,831 |
99.0 |
|
| death certificate only notified | 394 | 0.6 | 497 | 0.6 | 602 | 0.6 | 554 | 0.6 | 479 | 0.5 | |
Characteristics of female breast cancer patients (ICD-10 code: C50) from Germany (Saarland) and the US (SEER 9/13 regions) diagnosed between 1989 and 2008.
a proportion among patients with available stage/T classification; b the coverage of SEER program was extended from 9 to 13 registries in 1992.