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Table 2 Inner circumference* of regions of the lower gastrointestinal tract

From: Deficient expression of DNA repair enzymes in early progression to sporadic colon cancer

Region of lower GI tract Number of resections measured Mean inner circumference +/- S.E.M. Range of values
Cecum 12 8.7 +/- 0.3 cm 8-10.5 cm
Ascending colon 12 6.6 +/- 0.1 cm 6-7 cm
Transverse colon 6 5.8 +/- 0.3 cm 5-6.5 cm
Descending/Sigmoid colon 14 6.3 +/- 0.1 cm 6-6.8 cm
Rectum near rectal/sigmoid junction 12 5.7+/- 0.4 cm 4.5-7.5 cm
  1. *Measured within 20-30 minutes of removal from the body