An Updated Meta-analysis: Similar Clinical Efficacy of Anterior and Posterior Approaches in Peroral Endoscopic Myotomy (POEM) for Achalasia

Table 2

Metaregression with differences in pre- and postoperative Eckardt scores/LES pressure.

Variate	Meta regression (two-tailed value)
	Eckardt scores	LES pressure
Length of total myotomy	0.377	0.231
Follow up time	0.678	0.935
Type II proportion in AC	0.058	0.639
Course of disease	0.412	0.297
Prior treatment	0.351	0.279