|  |  | Year 5 deaths* | Year 8 deaths* |  |  | ||||
---|---|---|---|---|---|---|---|---|---|---|
Group | N | % | A | P†| Mortality Difference | A | P†| Mortality Difference | AUC | SE |
Total | 5,694 | 100.00 | 841 | 890 | 0.86 | 1,075 | 1,082 | 0.12 | 0.81 | 0.007 |
Age, years | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   <35 | 111 | 1.95 | 28 | 23 | 4.5 | 31 | 27 | 3.6 | 0.83 | 0.044 |
   35 to 49 | 1,172 | 20.58 | 150 | 171 | 1.79 | 187 | 209 | 1.88 | 0.81 | 0.017 |
   50 to 64 | 2,630 | 46.19 | 270 | 289 | 0.72 | 354 | 359 | 0.19 | 0.80 | 0.013 |
   65 to 74 | 1,124 | 19.74 | 176 | 191 | 1.33 | 227 | 233 | 0.53 | 0.79 | 0.019 |
   75+ | 657 | 11.54 | 217 | 216 | 0.15 | 276 | 254 | 3.35 | 0.68 | 0.021 |
Nodal status | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   Negative | 3,532 | 62.03 | 297 | 350 | 1.5 | 408 | 433 | 0.71 | 0.76 | 0.013 |
   Positive | 2,162 | 37.97 | 544 | 541 | 0.14 | 667 | 649 | 0.83 | 0.80 | 0.010 |
Tumour size, mm | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   <10 | 625 | 10.98 | 30 | 39 | 1.44 | 41 | 49 | 1.28 | 0.75 | 0.038 |
   10 to 19 | 2,310 | 40.57 | 194 | 222 | 1.21 | 267 | 280 | 0.56 | 0.75 | 0.017 |
   20 to 29 | 1,627 | 28.57 | 277 | 283 | 0.37 | 363 | 347 | 0.98 | 0.79 | 0.013 |
   30 to 49 | 845 | 14.84 | 215 | 226 | 1.3 | 259 | 270 | 1.3 | 0.76 | 0.018 |
   50+ | 287 | 5.04 | 125 | 119 | 2.09 | 145 | 136 | 3.14 | 0.82 | 0.024 |
Grade | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   I | 1,005 | 17.65 | 38 | 64 | 2.59 | 55 | 82 | 2.69 | 0.76 | 0.035 |
   II | 2,927 | 51.40 | 331 | 357 | 0.89 | 455 | 445 | 0.34 | 0.77 | 0.013 |
   III | 1,762 | 30.94 | 472 | 470 | 0.11 | 565 | 555 | 0.57 | 0.77 | 0.012 |
Oestrogen Receptor (ER) Status | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   Negative | 991 | 17.40 | 321 | 318 | 0.3 | 364 | 353 | 1.11 | 0.77 | 0.016 |
   Positive | 4,703 | 82.60 | 520 | 572 | 1.11 | 711 | 729 | 0.38 | 0.80 | 0.009 |