Review Article

Prognostic Significance of Platelet-to-Lymphocyte Ratio in Cholangiocarcinoma: A Meta-Analysis

Table 1

Characteristics of the studies included in the meta-analysis.

AuthorYearAreaFollow-up (months)TreatmentNo. of patientsStageCut-off valueSurvival analysisAnalysis

Buettner2018Multicenter29 (4.8-53.3)Surgery991NA190OSUV
Chen2015China57.8±11.2Surgery322Mixed123OS/RFSMV
Cho2018Korea25 (19.6-30.4))Chemotherapy257Metastatic123.8OS/PFSUV
Hu2018ChinaNASurgery173Mixed150OSUV
Kitano2017JapanNAMixed120Mixed185OS/RFSMV
Ramen2018ChinaNASurgery90NA148OS/RFSMV
Saito2015Japan70 (42-82)Surgery121Mixed150OSMV
Yoh2017Japan65 (26-84)Surgery134Mixed120OSMV
Zhang2016ChinaNANA187Mixed138OSMV

OS: overall survival; PFS: progress-free survival; RFS: recurrence-free survival; UV: univariate; MV: multivariate; NA: not available.