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Table 1 Characteristics all patients with CRC 2007-2009

From: The strengths and limitations of routine staging before treatment with abdominal CT in colorectal cancer

  All patients (n = 612)
Age   
Mean 70 yr  
Median 70 yr  
Range 33-98 yr  
Gender   
Male 349 57%
Female 263 43%
Localization primary tumor   
Colon 474 77%
Rectum 138 23%
Staging procedure   
Abdominal CT preceding treatment 513 84%
Abdominal CT < 3 months after surgery 44 7%
AJCC stage based on pTNM (2002) a   
Stage 0 12 2%
Stage I 75 12%
Stage II 171 28%
Stage III 143 23%
Stage IV 188 31%
Not classifiedd 23 4%
Localizations of distant metastases in cohort b   
Liver 101 17%
Peritoneal 27 4%
Liver and lung 24 4%
Liver and peritoneal 11 2%
Lung 7 1%
Peritoneal and lung 4 1%
More than 2 organs and/or other localisationsc 14 2%
Localization of distant metastases per organ b, c   
Liver 144 24%
Peritoneal 49 8%
Lung 42 7%
  1. a This includes patients with pathological downstaging after neoadjuvant chemoradiation (n = 69); a complete remission of histologically proven colorectal cancer was staged as stage 0.
  2. b Staging of the lung in this cohort was done with chest CT (n = 415) or chest X-ray (n = 197).
  3. c Other localisations were brain and skeletal metastases.
  4. d Of 23 patients, 20 patients had no surgery and 3 patients had no resection resulting in an unknown TN status. Of 23 patients, 11 patients had an unknown M status and 12 patients had M0 status.