The purpose of this letter was to explore how lesion size affects the pooled effect of traction-assisted endoscopic submucosal dissection on procedure time. Our meta-regression showed that lesion size negatively associated with the effect of traction-assisted endoscopic submucosal dissection on procedure time (estimate point = - 1.02; 95% confidence interval, from - 1.58 to - 0.46). We also confirmed this result in different statistical models including fixed effect regression and two mixed effects regression models.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6737606PMC
http://dx.doi.org/10.1186/s12957-019-1699-0DOI Listing

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