a strong trendp = 0.066
In line, we found a strong trend (p = 0.066) towards higher serum levels of CEA in patients with poorly differentiated tumours compared to moderately differentiated tumor (see Suppl.
In line, we found a strong trend (p = 0.066) towards higher serum levels of CEA in patients with poorly differentiated tumours compared to moderately differentiated tumor (see Suppl.
Interestingly, Kaplan-Meier curve analysis using the optimal CEA cut-off value of 4.55 μg/l revealed an highly significant impaired long-term survival for patients with CEA serum levels above 4.55 μg/l (Fig. 3b ).