Characteristics of participants who did or did not survive the first year after diagnosis
| Patient characteristic | Survival | p Value* | |
| <1 year from diagnosis | >1 year from diagnosis | ||
| Number (%) | Number (%) | ||
| Age at diagnosis (years) | |||
| <50 | 88 (9.0) | 3712 (26.4) | <0.001 |
| 50–59 | 91 (9.3) | 3648 (26.0) | |
| 60–69 | 148 (15.1) | 2894 (20.6) | |
| 70–79 | 270 (27.6) | 2373 (16.9) | |
| ≥80 | 383 (39.1) | 1430 (10.2) | |
| Ethnicity | |||
| Non-white | 75 (7.7) | 1983 (14.1) | <0.001 |
| White | 488 (49.8) | 8610 (61.3) | |
| Not known | 417 (42.6) | 3464 (24.6) | |
| Distant metastases at diagnosis | |||
| No | 312 (31.8) | 7977 (56.7) | <0.001 |
| Yes | 156 (15.9) | 271 (1.9) | |
| Not known | 512 (52.2) | 5809 (41.3) | |
| Tumour size (mm) | |||
| <10 | 12 (1.2) | 1220 (8.7) | <0.001 |
| 10–19 | 73 (7.4) | 4016 (28.6) | |
| 20–39 | 83 (8.5) | 3103 (22.1) | |
| 40–49 | 86 (8.8) | 1953 (13.9) | |
| ≥50 | 99 (10.1) | 799 (5.7) | |
| Not known | 627 (64.0) | 2966 (21.1) | |
| Node status | |||
| Negative | 95 (9.7) | 5492 (39.1) | <0.001 |
| Positive | 167 (17.0) | 4213 (30.0) | |
| Not known | 718 (73.3) | 4352 (31.0) | |
| Charlson Index (comorbidities) | |||
| 0 (minor) | 203 (20.7) | 6755 (48.1) | <0.001 |
| 1 (moderate) | 48 (4.9) | 359 (2.6) | |
| ≥2 (severe) | 231 (23.6) | 1384 (9.8) | |
| Not known | 498 (50.8) | 5559 (39.5) | |
| Diagnosis date (in relation to Cancer Plan) | |||
| Pre 2000 | 624 (63.7) | 9057 (64.4) | 0.79 |
| 2000–2003 | 292 (29.8) | 3897 (27.7) | |
| Post 2003 | 64 (6.5) | 1103 (7.8) | |
| Presentation | |||
| Screening | 23 (2.3) | 2274 (16.2) | <0.001 |
| Symptoms | 763 (77.9) | 9531 (67.8) | |
| Incidental | 64 (6.5) | 528 (3.8) | |
| Not known | 130 (13.3) | 1724 (12.3) | |
| Surgery | |||
| No | 489 (49.9) | 1513 (10.8) | <0.001 |
| Yes | 491 (50.1) | 12 544 (89.2) | |
| Radiotherapy | |||
| No | 454 (46.3) | 3395 (24.2) | <0.001 |
| Yes | 256 (26.1) | 7079 (50.4) | |
| Not known | 270 (27.6) | 3583 (25.5) | |
| Chemotherapy | |||
| No | 520 (53.1) | 6482 (46.1) | <0.001 |
| Yes | 203 (20.7) | 4200 (29.9) | |
| Not known | 257 (26.2) | 3375 (24.0) | |
| Tamoxifen | |||
| No | 172 (17.6) | 2321 (16.5) | 0.49 |
| Yes | 601 (61.3) | 8630 (61.4) | |
| Not known | 207 (21.1) | 3106 (22.1) | |
| Total cases | 980 | 14 057 | |
↵* p Value for comparison of proportions, excluding ‘not known' category where present. For age, tumour size, Charlson Index and Cancer Plan, test is for trend; for all other factors, test is for heterogeneity.