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Table 1 Characteristics and evaluation of included studies*

From: A comparison of posterior lumbar interbody fusion and transforaminal lumbar interbody fusion: a literature review and meta-analysis

  Year Country of origin PLIF/TLIF Evaluation
    Patients, n Mean age, y Male, % Mean follow up, months  
Humphreys et al. [19] 2001 USA 34/40 40.00/41.00 64.71/50.00 13.0/13.0 10
Jae-Sung Park et al. [22] 2005 Korea 99/29 54.00/57.00 43.43/34.48 20.0/10.4 12
Yan et al. [25] 2008 China 60/60 63.60/64.50 55.00/53.33 23.0/23.0 14
Zhuo et al. [27] 2009 China 22/18 41.00/43.00 63.64/72.22 20.0/20.0 13
Mehta et al. [21] 2011 USA 76/43 48.56/48.12 44.74/37.21 24.0/24.0 11
Audat et al. [20] 2012 Jordan 27/37 50.60/45.80 22.22/37.84 36.0/36.0 13
Sakeb et al. [26] 2013 Bangladesh 52/50 46.73/49.04 21.15/28.00 9.0/9.0 14
  1. *All studies were retrospective and comparative.
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