Table 1.

Association between IL‐8 expression and clinicopathological characteristics in PDAC

Characteristics	n	IL‐8 expression in tumor			IL‐8 expression in stroma
		Low	High	P	Low	High	P
Tumor size
≤3.0 cm	22	11	11	0.414	10	12	0.894
>3.0 cm	48	29	19		21	27
Histopathologic grade
Grade 1	23	13	10	0.624	12	11	0.564
Grade 2	25	16	9		11	14
Grade 3	22	11	11		8	14
T stage
T1/2	13	6	7	0.375	4	9	0.277
T3/4	57	34	23		27	30
Lymph nodes status
Negative	29	20	9	0.093	18	11	0.012*
Positive	41	20	21		13	28
Distant metastasis
Negative	58	34	24	0.583	26	32	0.841
Positive	12	6	6		5	7
CD68+ macrophages
Low	36	23	13	0.241	21	15	0.015*
High	34	17	17		10	24
CD163+ macrophages
Low	35	22	13	0.334	17	18	0.47
High	35	18	17		14	21

^aPDAC, pancreatic ductal adenocarcinoma.

*P < 0.05.