Comparative analysis of clinicopathological correlations of cyclooxygenase-2 expression in resectable pancreatic cancer

Table 1 Patient, tumor and treatment characteristics, and levels of COX-2 expression (n = 85)

	n
Gender
Male	41
Female	44
Mean age (range) (yr)	61 ± 9.5 (39-85)
Location of tumor
Head, body	80
Tail	5
T category
T1	6
T2	29
T3	50
N category
N0	23
N1	62
M category
M0	85
M1	0
Surgical procedure
Pancreatoduodenectomy	78
Caudal pancreatectomy	5
Total pancreatectomy	2
Histological differentiation
Well	8
Moderately	54
Poorly differentiated	23
No adjuvant therapy	30
Adjuvant therapy	33
Chemotherapy	23
Chemoradiotherapy	10
COX-2 expression with monoclonal antibody
COX-2 negative	16
COX 1+	27
COX-2+	39
COX-2 expression with polyclonal antibody
COX-2 negative	26
COX 1+	28
COX-2+	31

COX-2: Cyclooxygenase-2.