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Table 1 Characteristics of studies included in the meta-analyses

From: Minimally invasive versus open Transforaminal lumbar Interbody fusion in obese patients: a meta-analysis

Study Study No. of patients Mean follow Meanage Gender
(% male)
Mean BMI (kg/m2) Diagnosis NOS score
design (MI: Open) up (mo) (y) (MI: Open) (MI: Open) (MI: Open)   
Adogwa [24], USA retrospective cohort study 40/108 24 56.62/56.12 50/47 34.48/35.63 DDD, Spondylolisthesis 7
Wang [29], China retrospective cohort study 35/37 6 51.3/52.3 54/68 34.8/33.7 LDP 6
Lau [25], USA retrospective cohort study 78/49 NP 50.5/57.4 46.2/42.1 36.9/37.2 spondylolisthesis, DDD, LDH, stenosis, deformity 7
Wang [28], China prospective cohort study 42/39 36.1 56.4/54.2 69.1/69.2 29.5/28.3 spondylolisthesis, 6
Terman [27], USA retrospective cohort study 53/21 30 52.4/58.2 45/62 35.2/33.8 spondylolisthesis, DDD, stenosis,
LDH
7
Zhang [30], China retrospective cohort study 32/24 6 42/45 41/39 31.3/33.2 LDH 5
Mao [26], China retrospective cohort study 46/33 6 40.8/43.3 41.3/36.3 32.8/33.6 LDH 5
  1. DDD Degenerative disc disease, LDH Lumbar disc herniation, NOS Newcastle Ottawa Scale, MI Minimally invasive surgery, Open Open surgery, NP Not provided, mo Month, y Year