|  |  | Year 5 deaths* | Year 8 deaths* |  |  | ||||
---|---|---|---|---|---|---|---|---|---|---|
Group | N | % | A | P†| Mortality Difference | A | P†| Mortality Difference | AUC | SE |
Total | 5,468 | 100 | 862 | 950 | 1.61 | 955 | 1006 | 0.93 | 0.79 | 0.008 |
Age, years | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   <35 | 108 | 1.98 | 21 | 24 | 2.78 | 28 | 26 | 1.85 | 0.70 | 0.057 |
   35 to 49 | 1,195 | 21.85 | 153 | 185 | 2.68 | 175 | 201 | 2.18 | 0.79 | 0.018 |
   50 to 64 | 2,393 | 43.76 | 279 | 311 | 1.34 | 310 | 334 | 1 | 0.80 | 0.013 |
   65 to 74 | 1,101 | 20.14 | 198 | 203 | 0.45 | 218 | 217 | 0.09 | 0.76 | 0.018 |
   75+ | 671 | 12.27 | 211 | 216 | 0.75 | 224 | 228 | 0.6 | 0.72 | 0.021 |
Nodal status | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   Negative | 3,184 | 58.23 | 265 | 333 | 2.14 | 301 | 357 | 1.76 | 0.74 | 0.015 |
   Positive | 2,284 | 41.77 | 597 | 606 | 0.39 | 654 | 648 | 0.26 | 0.75 | 0.011 |
Tumour size, mm | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   <10 | 485 | 8.87 | 27 | 32 | 1.03 | 29 | 34 | 1.03 | 0.82 | 0.040 |
   10 to 19 | 2,136 | 39.06 | 173 | 216 | 2.01 | 196 | 233 | 1.73 | 0.76 | 0.018 |
   20 to 29 | 1,566 | 28.64 | 259 | 274 | 0.96 | 286 | 295 | 0.57 | 0.71 | 0.017 |
   30 to 49 | 923 | 16.88 | 257 | 258 | 0.11 | 272 | 276 | 0.43 | 0.72 | 0.018 |
   50+ | 358 | 6.55 | 146 | 160 | 3.91 | 156 | 168 | 3.35 | 0.72 | 0.027 |
Grade | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   I | 1,017 | 18.6 | 66 | 67 | 0.1 | 75 | 72 | 0.29 | 0.79 | 0.029 |
   II | 2,442 | 44.66 | 314 | 318 | 0.16 | 359 | 344 | 0.61 | 0.77 | 0.013 |
   III | 2,009 | 36.74 | 482 | 554 | 3.58 | 521 | 589 | 3.38 | 0.75 | 0.012 |
Oestrogen Receptor (ER) Status | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   Negative | 1,116 | 20.41 | 317 | 364 | 4.21 | 341 | 380 | 3.49 | 0.76 | 0.016 |
   Positive | 4,352 | 79.59 | 545 | 575 | 0.69 | 614 | 625 | 0.25 | 0.78 | 0.010 |