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Table 2 Causes of death (from the Swedish cause of death registry) in patients with CUP (Squamous cell cancer) in the Swedish cancer registry

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

  Site of CUP
Cause of death Head Respiratory system Liver Peritoneum Bone Pelvis Nervous system Other specified 199/C80 All
Lung 8 24% 37 62% 11 29% 2 9% 17 77% 0 0% 19 90% 15 38% 91 48% 200 45%
Upper aerodigestive 11 32% 1 2% 1 3% 0 0% 0 0% 0 0% 0 0% 4 10% 15 8% 32 7%
Mediastinum 0 0% 16 27% 0 0% 0 0% 0 0% 0 0% 0 0% 0 0% 7 4% 23 5%
Urinary system 1 3% 0 0% 0 0% 2 9% 1 5% 5 31% 0 0% 4 10% 9 5% 22 5%
Skin 5 15% 0 0% 1 3% 0 0% 3 14% 0 0% 0 0% 3 8% 7 4% 19 4%
Oesophagus 1 3% 2 3% 0 0% 0 0% 0 0% 0 0% 1 5% 3 8% 10 5% 17 4%
Liver 0 0% 1 2% 10 26% 0 0% 0 0% 0 0% 0 0% 0 0% 6 3% 17 4%
Pancreas 0 0% 1 2% 5 13% 3 13% 1 5% 0 0% 0 0% 1 3% 4 2% 15 3%
Biliary system 0 0% 0 0% 6 16% 2 9% 0 0% 0 0% 0 0% 0 0% 5 3% 13 3%
Other cancer 8 24% 2 3% 4 11% 14 61% 0 0% 11 69% 1 5% 10 25% 34 18% 84 19%
Any specified cancer 34 100% 60 100% 38 100% 23 100% 22 100% 16 100% 21 100% 40 100% 188 100% 442 100%
CUP C80 24   10   27   23   15   13   6   17   77   212  
Non-cancer 21   7   1   2   3   5   3   8   69   119  
Total 80   77   66   48   40   34   30   65   334   773  
  1. CUP = Cancer of unknown primary. C80/199 = CUP with unspecified location. The most common cause of death is bolded.