[Retracted] Clinical Efficacy and Safety of Percutaneous Spinal Endoscopy versus Traditional Open Surgery for Lumbar Disc Herniation: Systematic Review and Meta-Analysis

Table 1

Basic clinical features of 12 literatures included in our study.

Study	Age	Gender (man)	Experimental group (N)	Control group (N)	NOS score	Research type	values of HWE
Heo et al. (2019) [11]	43.71 ± 12.2	45.25	96	75	8	RCT	0.35
Cheng and Chen (2020) [8]	45.65 ± 13.4	59.12	86	63	8	RCT	0.02
Lohre et al. (2020) [12]	62.12 ± 14.5	55.72	118	108	8	RCT	0.04
Carbó et al. (2019) [13]	57.15 ± 14.5	54.12	66	60	7	RCT	0.12
Wu et al. (2020) [4]	52.45 ± 8.4	54.89	58	73	8	RCT	0.06
Yang et al. (2020) [14]	64.26 ± 10.2	53.45	54	65	7	RCT	0.02
Ao et al. (2020) [15]	62.45 ± 12.2	48.10	80	75	9	RCT	0.01
Li et al. (2020) [16]	62.51 ± 13.0	58.75	80	63	8	RCT	0.02
Feng et al. (2020) [17]	47.25 ± 14.5	55.23	41	56	7	RCT	0.14
Li et al. (2020) [18]	56.22 ± 15.2	46.22	64	70	8	RCT	0.23
Wang et al. (2021) [19]	51.35 ± 8.1	54.16	108	100	7	RCT	0.01
Yu et al. (2020) [20]	57.65 ± 16.0	56.34	96	77	7	RCT	0.25