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Table 3 Comparisons of the 3-year colorectal cancer specific overall survival rates between classical adenocarcinoma and other histologic types

From: Adenocarcinoma with mixed subtypes is a rare but aggressive histologic subtype in colorectal cancer

CharacteristicsClassical adenocarcinoma (mean ± SD)Mucinous adenocarcinoma (mean ± SD)P1aP2aSignet-ring cell carcinoma (mean ± SD)P1aP2aAdenocarcinoma with mixed subtypes (mean ± SD)P1a
All90.3 ± 0.4%71.6 ± 1.3%<  0.001<  0.00138.0 ± 5.8%<  0.0010.2949.8 ± 5.2%<  0.001
TNM stage
 0 + I96.3 ± 0.3%91.0 ± 2.4%<  0.0010.3294.3 ± 4.0%0.210.5385.9 ± 9.5%0.03
 II90.2 ± 1.1%85.5 ± 2.3%0.040.8371.6 ± 6.1%<  0.0010.1588.7 ± 5.5%0.43
 III84.1 ± 1.5%72.0 ± 1.7%<  0.001<  0.00141.4 ± 12.3%<  0.0010.5141.7 ± 10.5%<  0.001
 IV35.2 ± 2.9%36.1 ± 2.5%0.99<  0.0019.4 ± 4.8%<  0.0010.7819.5 ± 7.2%0.001
Tumor location
 Colon90.2 ± 0.5%71.8 ± 1.4%<  0.001<  0.00138.4 ± 6.6%<  0.0010.5448.3 ± 5.8%<  0.001
 Rectum90.4 ± 0.8%70.4 ± 3.1%<  0.0010.1026.6 ± 12.5%<  0.0010.1956.4 ± 11.9%<  0.001
Sex
 Male90.7 ± 0.5%70.9 ± 2.2%<  0.001<  0.00126.7 ± 11.5%<  0.0010.3851.4 ± 5.2%<  0.001
 Female89.8 ± 0.6%72.3 ± 1.3%<  0.001<  0.00145.9 ± 3.8%<  0.0010.5048.8 ± 8.8%<  0.001
Age (yrs)
  ≤ 6692.9 ± 0.5%74.7 ± 1.5%<  0.001<  0.00139.8 ± 4.5%<  0.0010.1253.4 ± 6.3%<  0.001
  > 6686.9 ± 0.7%68.6 ± 2.0%<  0.001<  0.00139.1 ± 9.4%<  0.0010.9947.8 ± 7.0%<  0.001
  1. Abbreviation: TNM tumor-node-metastasis
  2. a P1, comparisons using “classical adenocarcinoma” as the reference. P2, comparisons using “adenocarcinoma with mixed subtypes” as the reference