Table 1. Patient and disease characteristics.

Characteristic	Patients (n=33) [%]
Age (mean), year	61
Gender
Male	20 [61]
Female	13 [39]
T classification
T3	10 [30]
T4	23 [70]
N classification
N0	25 [76]
N1	8 [24]
CA 19-9 (mean)	1,456