Colon cancer (t, p) Rectal cancer (t, p)   T N M CS TD (r2, p) T N M CS TD (r2, p) Right 2D:4D .082 (0.209) -0.13 (0.45) 0.05 (0.32) 0.003 (0.49) 0.07 (0.31) 0,10 (0.21) 0.26 (0.02) 0.11 (0.21) 0,20 (0.06) -0.37 (0.02) Left 2D:4D 0.19 (0.03) -0.08 (0.21) -0.12 (0.12) -0.09 (0.15) -0.05 (0.38) 0.13 (0.14) 0.15 (0.12) 0.17 (0.10) 0.17 (0.09) -0.09 (0.32) Δr-l 2D:4D -0.06 (0.26) 0,08 (0.18) 0,14 (0.88) 0,08(0.20) 0.14 (0.17) -0.03 (0.41) 0.06 (0.33) -0.10 (0.24) 0,004 (0.48) -0.28 (0.06)

Table 3: Correlations between 2D:4D, TNM, clinical staging and histological type in colon and rectal cancers. T: Tumor size; N: Local lymph node involvement; M: Distant Metastases; CS: Clinical Staging; TD: Tumor Differentiation; t: Kendall’s Tau b; r2: Spearman’s Rho; Δr-l: Right minus left 2D:4D