Table 1.
Patient and tumour characteristics
| UK | All | |
|---|---|---|
| Patient records, n (%) | 144 733 (77.2) | 187 368 (100.0) |
| Patient age at testing (years), median (IQR) | 61 (51–71) | 61 (51–71) |
| Age (menopausal status surrogate), n (%) | ||
| <56 years | 36 171 (36.0) | 49 561 (36.0) |
| ≥56 years | 64 397 (64.0) | 88 281 (64.0) |
| Total records* | 100 568 (69.5*) | 137 842 (73.6*) |
| Referral pathway, n (%) | ||
| Screen‐detected | 2348 (38.2) | 4620 (35.4) |
| Symptomatic | 3792 (61.8) | 8414 (64.6) |
| Total records* | 6140 (4.2*) | 13 034 (7.0*) |
| Primary specimen sample type, n (%) | ||
| Axilla/nodes | 5618 (5.7) | 6428 (4.7) |
| Core biopsy | 68 333 (69.1) | 96 269 (71.0) |
| Excision | 24 876 (25.2) | 32 931 (24.3) |
| Total records* | 98 827 (68.3*) | 135 628 (72.4*) |
| Metastatic presentation site, n (%) | ||
| Bone | 221 (9.0) | 445 (11.4) |
| Cutaneous | 1072 (43.5) | 1483 (37.9) |
| Visceral | 1173 (47.6) | 1984 (50.7) |
| Total records* | 2466 (1.7*) | 3912 (2.1*) |
| Histological type, n (%) | ||
| Carcinoma in situ | 2346 (3.6) | 3753 (4.5) |
| IDC/NOS | 51 780 (80.1) | 66 432 (79.4) |
| ILC | 7922 (12.3) | 10 416 (12.4) |
| Mixed IDC/ILC | 1236 (1.9) | 1461 (1.7) |
| Special type | 1337 (2.1) | 1652 (2.0) |
| Total records* | 64 621 (44.6*) | 83 714 (44.7*) |
| Histological grade, n (%) | ||
| Grade 1 | 10 792 (16.3) | 13 032 (16.1) |
| Grade 2 | 35 147 (53.0) | 43 519 (53.7) |
| Grade 3 | 20 351 (30.7) | 24 424 (30.2) |
| Total records* | 66 290 (45.8*) | 80 975 (43.2*) |
| Histological tumour size, n (%) | ||
| Diameter < 20 mm | 7647 (53.2) | 10 075 (51.5) |
| Diameter 20 to <50 mm | 5487 (38.2) | 7596 (38.9) |
| Diameter ≥ 50 mm | 1234 (8.6) | 1876 (9.6) |
| Total records* | 14 368 (9.9*) | 19 547 (10.4*) |
| Nodal status, n (%) | ||
| N0 | 6913 (62.4) | 9138 (62.4) |
| N1 | 2691 (24.3) | 3613 (24.7) |
| N2 | 825 (7.4) | 1054 (7.2) |
| N3 | 649 (5.9) | 843 (5.8) |
| Total records* | 11 078 (7.7*) | 14 648 (7.8*) |
Summary data for count of patient records and for patient age at testing, together with data on other patient and tumour characteristics. Data are presented for the UK and the whole patient population
n = number in group, % = proportion within group.
*
‘Total records’ the proportion is that of whole population, and thus indicates coverage.