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Table 1 Characteristics of the patients diagnosed with breast cancer between 1995 and 2002

From: On the use of flexible excess hazard regression models for describing long-term breast cancer survival: a case-study using population-based cancer registry data

  Radiotherapy Chemotherapy Hormonal treatment Total
No Yes No Yes No Yes  
N % N % N % N % N % N % N %
Age group
  < 40 16 5.5 71 4.7 14 1.4 73 9.2 39 7.9 48 3.7 87 4.8
 40–49 79 27.1 280 18.6 125 12.4 234 29.6 149 30.3 210 16.1 359 20.0
 50–59 78 26.8 574 38.1 348 34.6 304 38.4 158 32.1 494 37.9 652 36.3
 60–69 87 29.9 448 29.7 374 37.2 161 20.4 114 23.2 421 32.3 535 29.8
 70–79 31 10.7 133 8.8 145 14.4 19 2.4 32 6.5 132 10.1 164 9.1
 Total 291 100 1506 100 1006 100 791 100 492 100 1305 100 1797 100
Size in mm
 0–9 44 15.1 227 15.1 222 22.1 49 6.2 84 17.1 187 14.3 271 15.1
 10–19 91 31.3 709 47.1 512 50.9 288 36.4 172 35 628 48.1 800 44.5
 20–29 66 22.7 329 21.8 170 16.9 225 28.4 120 24.4 275 21.1 395 22.0
 30–39 45 15.5 115 7.6 56 5.6 104 13.1 51 10.4 109 8.4 160 8.9
 40+ 27 9.3 72 4.8 33 3.3 66 8.3 38 7.7 61 4.7 99 5.5
 Missing 18 6.2 54 3.6 13 1.3 59 7.5 27 5.5 45 3.4 72 4.0
 Total 291 100 1506 100 1006 100 791 100 492 100 1305 100 1797 100
Nodal involvement
 N+ 82 28.2 418 27.8 127 12.6 373 47.2 137 27.8 363 27.8 500 27.8
 N0 201 69.1 1064 70.7 863 85.8 402 50.8 351 71.3 914 70 1265 70.4
 Missing 8 2.7 24 1.6 16 1.6 16 2 4 0.8 28 2.1 32 1.8
 Total 291 100 1506 100 1006 100 791 100 492 100 1305 100 1797 100
Differentiation
 Well differentiated 186 63.9 927 61.6 497 49.4 616 77.9 346 70.3 767 58.8 1113 61.9
 Moderately/ poorly differentiated 84 28.9 533 35.4 472 46.9 145 18.3 114 23.2 503 38.5 617 34.3
 Missing 21 7.2 46 3.1 37 3.7 30 3.8 32 6.5 35 2.7 67 3.7
 Total 291 100 1506 100 1006 100 791 100 492 100 1305 100 1797 100
Hormone receptors
 Positive 220 75.6 1300 86.3 920 91.5 600 75.9 253 51.4 1267 97.1 1520 84.6
 Negative 38 13.1 174 11.6 45 4.5 167 21.1 194 39.4 18 1.4 212 11.8
 Missing 33 11.3 32 2.1 41 4.1 24 3 45 9.1 20 1.5 65 3.6
 Total 291 100 1506 100 1006 100 791 100 492 100 1305 100 1797 100
Complete data
 Complete 216 74.2 1358 90.2 900 89.5 674 85.2 397 80.7 1177 90.2 1574 87.6
 Missing 75 25.8 148 9.8 106 10.5 117 14.8 95 19.3 128 9.8 223 12.4
 Total 291 100 1506 100 1006 100 791 100 492 100 1305 100 1797 100