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Table 4 Estimated survival for each symptoms-to-diagnosis interval quartile for colorectal cancer incident cases

From: Effect of diagnostic delay on survival in patients with colorectal cancer: a retrospective cohort study

  Survival probability
6 months 1 year 2 years 3 years 4 years 5 years
Total
 1st quartile (<1.5 months) 85.6 % 81.2 % 73.7 % 61.3 % 50.4 % 45.6 %
 2nd quartile (1.5–3.4 months) 90.6 % 84.1 % 71.7 % 62.9 % 52.3 % 44.2 %
 3rd quartile (3.4–6.4 months) 92.6 % 88.4 % 77.5 % 65.7 % 59.0 % 55.0 %
 4rd quartile (>6.4 months) 92.1 % 87.7 % 78.6 % 68.6 % 63.9 % 54.5 %
Log-rank = 9.263; P = 0.026
Colon
 1st quartile (<1.3 months) 86.7 % 82.7 % 75.1 % 67.2 % 54.3 % 47.8 %
 2nd quartile (1.3–3.2 months) 88.6 % 82.7 % 70.7 % 64.3 % 54.9 % 47.6 %
 3rd quartile (3.2–6.2 months) 92.7 % 87.7 % 76.2 % 63.4 % 55.7 % 53.1 %
 4rd quartile (>6.2 months) 90.5 % 85.8 % 79.0 % 70.8 % 68.0 % 59.0 %
Log-rank = 5.120; P =0.163
Rectum
 1st quartile (<2.2 months) 87.0 % 78.2 % 61.3 % 40.7 % 34.2 % 30.9 %
 2nd quartile (2.2–3.7 months) 95.9 % 91.6 % 79.5 % 67.1 % 56.1 % 46.5 %
 3rd quartile (3.7–7.3 months) 95.8 % 88.6 % 82.7 % 66.2 % 63.2 % 55.5 %
 4rd quartile (>7.3 months) 94.5 % 94.5 % 80.2 % 74.3 % 66.9 % 55.0 %
Log-rank = 16.963; P =0.001