Fig. 4

Evaluation of CDX2 expression in CRC. a Representative images of immunohistological stainings of CDX2 in human CRC tissue specimens; normal colon epithelium and CRC with <5 % expression, 5–50 % expression and >50 % expression of CDX2. b Kaplan-Meier survival analyses of CDX2 expression in CRC. c Kaplan-Meier survival analyses in subgroups of CRC defined as SOX2 positive or negative, and CDX2 < 50 % expression and >50 % expression. Log-rank tests were used to calculate P-values