Association between RLN metastasis and preoperative sCEA levels (stratified by rs1047781 genotypes).

1The values of CEA levels and times were represented by median values, and the range of sCEA level is shown.
2St. J-T statistic was represented using the standard statistic of Jonckheere-Terpstra test.
3The distant organs included liver, lung and omentum.
4The rate of tumor lymph node metastasis was adjusted.
5The statistical evaluation for CEA levels was performed by Mann-Whitney U test.