Table 1

Correlation of CXCR2 expression on peripheral CD68⁺ macrophages with clinicopathological parameters in patients with pancreatic cancer

Clinicopathological parameters	N	CXCR2 expression		χ²	P value
Clinicopathological parameters	N	Low (n=26)	High (n=18)	χ²	P value
Age (years)
<65	21	12	9	0.063	0.802
≥65	23	14	9	0.063	0.802
Gender
Male	25	15	10	0.020	0.888
Female	19	11	8	0.020	0.888
Tumor size (cm)
≤3.0	24	16	8	1.254	0.263
>3.0	20	10	10	1.254	0.263
Tumor site
Head	33	20	13	0.125	0.723
Body+tail	11	6	5	0.125	0.723
Histological grade
Poor+moderate	38	23	15	0.238	0.626
Well	6	3	3	0.238	0.626
Tumor classification
T1–T2	20	16	4	6.631	0.010*
T3–T4	24	10	14	6.631	0.010*
Node classification
N0	18	14	4	4.400	0.036*
N1+N2	26	12	14	4.400	0.036*
Distant metastasis
M0	36	21	15	0.047	0.828
M1	8	5	3	0.047	0.828
Clinical stage
I–II	16	13	3	5.107	0.024*
III–IV	28	13	15	5.107	0.024*