Objective: This study aimed to perform a survival analysis of patients with multicentric low-grade gliomas (MLGGs) and to assess the influence of various prognostic factors on progression-free survival (PFS) and overall survival.
Methods: A literature search on Web of Science and PubMed was performed for literature in English published from 1963 to September 2018. Detailed information including demographics, clinical characteristics, treatments, critical events, and time to events for survival analysis were extracted from the included articles.
Results: A total of 36 cases from published articles were selected for analysis. Univariate analysis showed that age (<31 years or ≥31 years), grade (pure low grade/low and high grade) and glioma type (astrocytoma/oligodendroglioma) had a significant relationship with PFS. Cox regression analysis showed that tumor grade was an independent prognostic factor for PFS. No factors correlated with overall survival.
Conclusions: This integrative analysis of MLGGs patients revealed that age younger than 31 years, pure MLGG, and oligodendroglioma were significantly associated with improved PFS, and pure MLGGs was an independent prognostic factors for PFS.
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