Endoscopic submucosal dissection vs endoscopic mucosal resection for colorectal polyps: A meta-analysis and meta-regression with single arm analysis

Table 2 Meta-regression

	En bloc resection			Complete resection			Perforation			Bleeding			Recurrence
	n	Beta (CI)	P value	n	Beta (CI)	P value	n	Beta (CI)	P value	n	Beta (CI)	P value	n	Beta (CI)	P value
Age	8	-0.017 (-0.168-0.133)	0.785	5	-0.010 (-0.426-0.406)	0.944	9	0.073 (-0.191-0.336)	0.535	8	-0.201 (-0.540-0.138)	0.197	8	0.254 (-0.039-0.547)	0.078
Gender	6	-6.023 (-23.152-11.106)	0.384	4	-20.662 (-108.758-67.434)	0.419	8	-7.868 (-22.078–6.342)	0.224	7	-4.446 (-27.915-19.022)	0.647	6	-9.096 (-62.174-43.982)	0.659
Polyp size	10	0.242 (-0.037-0.086)	0.390	6	-0.034 (-0.098-0.030)	0.217	10	-0.034 (-0.117-0.049)	0.378	9	-0.041 (-0.177-0.095)	0.498	8	0.077 (-0.118-0.272)	0.369
Lateral spreading tumor	10	1.262 (-1.072-3.596)	0.248	7	-0.481 (-4.655-3.693)	0.779	11	-2.324 (-5.536-0.888)	0.136	9	-0.680 (-5.586-4.226)	0.753	9	3.827 (-2.323-9.977)	0.185
Right colon	8	1.247 (-2.024-4.517)	0.387	5	2.373 (-0.881-5.626)	0.103	8	7.731 (4.965-10.497)	< 0.001	7	1.688 (-12.442-15.817)	0.771	6	-8.739 (-26.616-9.139)	0.246
Colon	7	-1.803 (-4.486-0.880)	0.145	4	-1.914 (-7.213-3.385)	0.26	8	0.759 (-3.184-4.701)	0.654	6	6.649 (-5.182-18.480)	0.194	7	-1.102 (-4.754-2.551)	0.473
Rectum	7	1.803 (-0.880-4.486)	0.145	4	1.914 (-3.385-7.213)	0.26	8	-0.759 (-4.701-3.184)	0.654	6	-6.649 (-18.480-5.182)	0.194	7	1.102 (-2.551-4.754)	0.473
Submucosal invasion	8	-0.004 (-0.014-0.007)	0.431	5	-0.006 (-0.020-0.008)	0.253	9	0.001 (-0.049-0.051)	0.956	8	-0.016 (-0.033-0.001)	0.061	7	-6.508 (-27.976-14.960)	0.471
Muscularis propria invasion	8	-5.870 (-17.738-5.998)	0.272	5	-0.157 (-21.715-21.401)	0.983	9	6.731 (-33.772-47.234)	0.706	8	-109.836 (-1040.943-821.272)	0.783	-	-	-

CI: Confidence interval.