Table 1 |
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|
Demographic and clinical characteristics of patients at baseline |
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| Characteristic |
Age group |
Total |
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|
|
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| < 60 years |
60 to 64 years |
> 64 years |
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|
|
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| Cases |
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| Total |
3,160 (100) |
645 (100) |
422 (100) |
4,227 (100) |
| Receptor status (ER-positive and/or PgR-positive versus both negative) |
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| Positive |
1,941 (61.4) |
447 (69.3) |
278 (65.9) |
2,666 (63.1) |
| Negative |
876 (27.7) |
144 (22.3) |
112 (26.5) |
1,132 (28.6) |
| Unknown |
343 (10.9) |
54 (8.4) |
32 (7.6) |
429 (10.1) |
| Tumor grading |
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| Grade 1 |
142 (5.1) |
29 (5.0) |
22 (5.8) |
193 (5.2) |
| Grade 2 |
1,534 (54.9) |
321 (55.6) |
224 (59.4) |
2,079 (55.5) |
| Grade 3 |
1,117 (40.0) |
227 (39.3) |
131 (34.7) |
1,475 (39.4) |
| Valid |
2,793 (88.4) |
577 (89.5) |
377 (89.3) |
3,747 (88.6) |
| Missing |
367 (11.6) |
68 (10.5) |
45 (10.7) |
480 (11.4) |
| Histological tumor type |
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| Ductal invasive |
2,405 (76.1) |
459 (71.1) |
315 (74.6) |
3,179 (75.2) |
| Lobular invasive |
477 (15.0) |
127 (19.6) |
65 (15.4) |
669 (15.8) |
| Other |
233 (7.3) |
54 (8.3) |
35 (8.2) |
322 (7.6) |
| Valid |
3,115 (98.6) |
640 (99.9) |
415 (98.4) |
4,170 (98.7) |
| Missing |
45 (1.4) |
5 (0.1) |
7 (1.6) |
57 (1.3) |
| Surgery type |
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| Breast-conserving |
1935 (61.2) |
381 (59.0) |
228 (54.0) |
2,544 (60.1) |
| Mastectomy |
961 (30.4) |
216 (33.4) |
161 (38.1) |
1,338 (31.6) |
| Valid |
2,896 (91.6) |
597 (92.5) |
389 (92.1) |
3,882 (91.8) |
| Missing |
264 (8.3) |
48 (7.4) |
33 (7.8) |
345 (8.1) |
| Age median (years) |
47 |
62 |
67 |
51 |
| Age range (years) |
23 to 59 |
60 to 64 |
65 to 80 |
23 to 80 |
|
|
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|
Data presented as n (%). All percentage values are valid. ER, estrogen receptor; PgR, progesterone receptor. |
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|
Loibl et al. Breast Cancer Research 2008 10:R77 doi:10.1186/bcr2144 |
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