marginally significantP = 0.07
Next, when the clinical features of the 84 ESCC cases were stratified by the pathohistological response of the primary lesion to NAC, the distribution of pathological T stage was significantly different between responders and non-responders ( P < 0.0001) whereas the distribution of pathological stage and pretreatment serum CEA value were marginally significant ( P = 0.07, Table 2 ).