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Table 3 Extended Cox Regression Model: First post-operative colonoscopy variables not associated with time period of diagnosis

From: A retrospective study on the use of post-operative colonoscopy following potentially curative surgery for colorectal cancer in a Canadian province

  Month 1 – 12 Month 13 – 60
  HR (95% CI) HR (95% CI)
Age Group (vs 30 – 54)   
   55 – 69 0.77 (0.63 – 0.93) 0.98 (0.81 – 1.19)
   70 – 69 0.48 (0.38 – 0.60) 0.53 (0.43 – 0.66)
   80+ 0.14 (0.10 – 0.21) 0.29 (0.21 – 0.38)
Procedure type   
   APR vs Resection 0.29 (0.22 – 0.40) 0.71 (0.59 – 0.86)
Cancer clinic visits (vs 0)   
   1 – 4 1.09 (0.92 – 1.30) 1.39 (1.19 – 1.63)
   ≥ 5 1.13 (0.92 – 1.39) 1.69 (1.39 – 2.06)
Surgeon performs colonoscopy   
   Yes vs No 1.85 (1.59 – 2.15) 1.38 (1.21 – 1.59)