BioMed Research International / 2018 / Article / Tab 2

Review Article

A Comparison of Percutaneous Endoscopic Lumbar Discectomy and Open Lumbar Microdiscectomy for Lumbar Disc Herniation in the Korean: A Meta-Analysis

Table 2

Risk of bias assessment of the nonrandomized studies.

StudiesSelectionComparabilityExposureTotal Quality score

Jeong (2006)2215
Lee (2006)2237
Kim (2007)2114
Lee (2009)2215
Lee (2017)2226
Ahn (2016)2226
Choi (2016)2215