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Table 1 Causes of death (from the Swedish cause of death registry) in patients with CUP (adenocarcinoma and undifferentiated cancer) depending on site in the Swedish cancer register

From: Causes of death in patients with extranodal cancer of unknown primary: searching for the primary site

  Location of CUP
Cause of death Liver Peritoneum Respiratory system Bone Pelvis Nervous system Other specified C80/199 All
Lung 189 8% 29 1% 558 53% 217 47% 3 1% 194 69% 184 27% 934 24% 2308 20%
Pancreas 551 22% 371 16% 31 3% 19 4% 4 1% 2 1% 66 10% 523 13% 1567 14%
Ovaries 25 1% 765 32% 33 3% 1 0% 160 47% 0 0% 34 5% 284 7% 1302 11%
Colorectum 330 13% 291 12% 17 2% 17 4% 26 8% 9 3% 82 12% 362 9% 1134 10%
Liver 649 26% 56 2% 13 1% 14 3% 2 1% 0 0% 10 1% 353 9% 1097 9%
Biliary system 310 13% 161 7% 7 1% 5 1% 0 0 0 0% 31 5% 285 7% 799 7%
Ill-defined gastro-intestinal 202 8% 154 6% 13 1% 12 3% 4 1% 1 0% 33 5% 219 6% 638 6%
Mediastinum 1 0% 13 1% 272 26% 3 1% 1 0% 4 1% 10 1% 114 3% 418 4%
Urinary system 28 1% 27 1% 22 2% 60 13% 12 4% 13 5% 51 7% 139 4% 352 3%
Stomach 50 2% 120 5% 12 1% 4 1% 3 1% 2 1% 38 6% 94 2% 323 3%
Peritoneum 5 0% 160 7% 5 0% 0 0% 10 3% 0 0% 6 1% 76 2% 262 2%
Breast 16 1% 6 0% 11 1% 24 5% 1 0% 3 1% 33 5% 70 2% 164 1%
Prostate 3 0% 4 0% 2 0% 34 7% 4 1% 6 2% 11 2% 76 2% 140 1%
Other cancer 100 4% 223 9% 58 6% 52 11% 108 32% 48 17% 92 14% 363 9% 1044 9%
Any specified cancer 2459 100% 2380 100% 1054 100% 462 100% 338 100% 282 100% 681 100% 3892 100% 11548 100%
CUP C80 1456   1456   313   398   122   106   287   2110   6248  
Non-cancer 175   175   122   85   41   32   107   557   1294  
Total 4090   4011   1489   945   501   420   1075   6559   18330  
  1. CUP = Cancer of unknown primary. C80/199 = CUP with unspecified location. The most common cause of death is bolded.