Table 2.

Summarized of the results of the meta-analysis.

Comparison	No. of studies	n	OR	95% CI	p-value	Heterogeneity		Eager's test	Rank correlation test	Absolute risk differences	Number need to treat
						I2	P
Control vs. Epinephrine group
Overall postpolypectomy bleeding	4	1062	0.38	0.21–0.66	0.0006a	0%	0.62	0.108	0.174	0.25	4
Early postplypectomy bleeding	4	1062	0.38	0.20–0.69	0.002a	0%	0.53	0.105	0.497	0.05	20
Delayed postpolypectomy bleeding	2	811	0.45	0.11–1.81	0.26	0%	0.26	0.247	0.467	0.01	100
Mechanical vs. Epinephrine group
Overall postpolypectomy bleeding	3	547	0.33	0.13–0.87	0.03a	0%	0.59	0.634	0.602	0.04	25
Early postplypectomy bleeding	3	547	0.29	0.08–1.02	0.05a	0%	0.45	0.491	0.602	0.03	33
Delayed postpolypectomy bleeding	3	547	0.58	0.13–2.49	0.46	0%	0.94	0.403	0.602	0.01	100

OR = Odds ratio, 95%CI = 95% Confidential interval.

^aStatistical significant.