Table 2.

Frequency of tumors with inflammatory cells adjacent to or distant from biopsy needle tract

Inflammatory cell	Site	N	Proportion, %	95% CI	p value
Neutrophil	AN	17	23.3	14.2–34.7
	DN	2	2.7	0.3–9.6	0.001*
	AN + DN	0	0	0–4.9
	Proportion difference		20.5	9.5–32.6
Eosinophil	AN	32	43.8	32.2–56.0
	DN	14	19.2	10.9–30.1	0.002*
	AN + DN	8	11.0	4.9–20.5
	Proportion difference		24.7	9.5–38.3
Macrophage	AN	54	74.0	62.4–83.6
	DN	35	48.0	36.1–60.0	0.001*
	AN + DN	31	42.5	31.0–54.9
	Proportion difference		26.0	13.0–39.0
Plasma cell	AN	35	48.0	36.1–60.0
	DN	39	53.4	41.4–65.2	0.607
	AN + DN	20	27.4	17.6–39.1
	Proportion difference		−5.4	−22.6 to 10.9
Lymphocyte	AN	65	89.0	80–95.2
	DN	65	89.0	80–95.2	1
	AN + DN	59	80.8	70–89.1
	Proportion difference		0	−10.9 to 10.9

AN, adjacent to the needle tract; DN, distant from the needle tract; AN+DN, present in both. Asterisk indicates statistical significance, p < 0.05.