Table 1 Characteristics of eight included studies in this meta-analysis
Study | Location | Type of operation | n, M/F | Age, years | Follow-up, years | rLDH/No rLDH | Influence factors |
|---|---|---|---|---|---|---|---|
Hao et al. [20] | China | PELD | 102, 65/37 | 50.9 ± 7.9 | ≥ 2 | 8/91 | MC |
He et al. [23] | China | PELD | 690, 455/235 | 43.66 ± 14.60 | 2 | 63/627 | Gender, MC, Age, BMI, SROM, Smoking, Diabetes |
Jia et al. [15] | China | PELD | 352, 230/122 | 16–90 | 0.5 | 32/320 | Gender, MC, Smoking, Diabetes |
Kim et al. [35] | Korea | PELD | 300, 139/161 | 46.72 ± 15.24 | 6.25 | 28/272 | Gender, MC |
Kong et al. [17] | China | PETD | 654, 355/299 | 45.6 ± 12.6 | ≥ 0.5 | 46/608 | Gender, Age, BMI, SROM, Smoking, Diabetes |
Ono et al. [16] | Japan | PEID | 909, 630/279 | 49.2 | 3.86 | 65/844 | Gender, MC, Smoking, Diabetes |
Wang et al. [25] | China | PELD | 942, 501/441 | 42.1 | ≥ 1 | 57/885 | Gender, MC, Age, BMI, Smoking, Diabetes |
Yu et al. [26] | China | PETD | 484, 254/230 | 48.2 ± 9.7 | 1–4 | 46/438 | Gender, Age, BMI, SROM, Smoking, Diabetes |