BioMed Research International / 2018 / Article / Tab 1

Review Article

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

Table 1

Baseline characteristics of included studies.

Author and yearStudy designNumber of patients (male/female)Patient age (years)Follow-up time (month)
PELDOLDPELDOLDPELDOLD

Jeong (2006)Non-randomized retrospective comparative22(14/8)25(16/9)56.45±10.8956±9.121212

Lee (2006)Non-randomized retrospective comparative30(22/8)30(22/8)39.3(22-67)39.6(20-64)38.2(32-45)36.8(35-42)

Kim (2007)Non-randomized retrospective comparative295(188/107)607(392/215)34.9(13-83)44.4(17-80)23.6(18-36)23.6(18-36)

Lee (2009)Non-randomized retrospective comparative25(16/9)29(22/7)42.0±11.447.7±12.234.0±4.434.3±4.6

Ahn (2016)retrospective cohort32(32/0)34(34/0)22.41±1.6822.18±1.5113.69±1.2613.41±1.02

Choi (2016)retrospective cohort20(14/6)23(13/10)33.9±11.138±11.627.5±5.727.5±5.7

Lee (2017)Non-randomized retrospective comparative35(25/10)48(30/18)50.20±12.8750.13±11.5624.17±11.8323.65±7.94