. 2014 Oct 1;9(10):e108290. doi: 10.1371/journal.pone.0108290

Table 5. Univariate analysis of number of resected polyps for delayed colonic postpolypectomy hemorrhage based on patients and different polypolypectomy methods.

	Non- hemorrhagic patients N^&/(Median(P₂₅–P₇₅)	Hemorrhagic patients N^&/(Median(P₂₅–P₇₅)	P-value^§
APC	407/3(1–8)	1/60 (-)	-
EMR	1170/1(1–2)	14/1(1–2.75)	0.509
EPMR	80/1(1–1)	6/1(1–1.75)	0.062
Biopsy forcep	1388/1(1–2)	0/-	-
Hot biopsy forcep	377/1(1–2.5)	1/1(-)	-
Snare polypectomy	4647/1(1–2)	71/1(1–3)	0.944

^§

, Mann Whitney test;

, “N” refers to the number of patients with colonic polyps resected by a certain polypectomy method.