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Original Article | Open Access

Clinical management and survival outcomes of patients with different molecular subtypes of diffuse gliomas in China (2011–2017): a multicenter retrospective study from CGGA

Kenan Zhang1Xing Liu2Guanzhang Li1,3Xin Chang4Shouwei Li4Jing Chen1Zheng Zhao1Jiguang Wang5,6,7Tao Jiang1,3 ( )Ruichao Chai1,2,5( )
Department of Molecular Pathology, Beijing Neurosurgical Institute, Capital Medical University, Beijing 100070, China
Department of Neuropathology, Beijing Neurosurgical Institute, Capital Medical University, Beijing 100070, China
Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
Department of Neurosurgery, Beijing Sanbo Brain Hospital, Capital Medical University, Beijing 100093, China
Division of Life Science and State Key Laboratory of Molecular Neuroscience, Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR 999077, China
Hong Kong Center for Neurodegenerative Diseases, Hong Kong Science Park, Hong Kong SAR 999077, China
HKUST Shenzhen-Hong Kong Collaborative Innovation Research Institute, Futian, Shenzhen 518057, China
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We aimed to summarize the clinicopathological characteristics and prognostic features of various molecular subtypes of diffuse gliomas (DGs) in the Chinese population.


In total, 1,418 patients diagnosed with DG between 2011 and 2017 were classified into 5 molecular subtypes according to the 2016 WHO classification of central nervous system tumors. The IDH mutation status was determined by immunohistochemistry and/or DNA sequencing, and 1p/19q codeletion was detected with fluorescence in situ hybridization. The median clinical follow-up time was 1,076 days. T-tests and chi-square tests were used to compare clinicopathological characteristics. Kaplan-Meier and Cox regression methods were used to evaluate prognostic factors.


Our cohort included 15.5% lower-grade gliomas, IDH-mutant and 1p/19q-codeleted (LGG-IDHm-1p/19q); 18.1% lower-grade gliomas, IDH-mutant (LGG-IDHm); 13.1% lower-grade gliomas, IDH-wildtype (LGG-IDHwt); 36.1% glioblastoma, IDH-wildtype (GBM-IDHwt); and 17.2% glioblastoma, IDH-mutant (GBM-IDHm). Approximately 63.3% of the enrolled primary gliomas, and the median overall survival times for LGG-IDHm, LGG-IDHwt, GBM-IDHwt, and GBM-IDHm subtypes were 75.97, 34.47, 11.57, and 15.17 months, respectively. The 5-year survival rate of LGG-IDHm-1p/19q was 76.54%. We observed a significant association between high resection rate and favorable survival outcomes across all subtypes of primary tumors. We also observed a significant role of chemotherapy in prolonging overall survival for GBM-IDHwt and GBM-IDHm, and in prolonging post-relapse survival for the 2 recurrent GBM subtypes.


By controlling for molecular subtypes, we found that resection rate and chemotherapy were 2 prognostic factors associated with survival outcomes in a Chinese cohort with DG.

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Cancer Biology & Medicine
Pages 1460-1476
Cite this article:
Zhang K, Liu X, Li G, et al. Clinical management and survival outcomes of patients with different molecular subtypes of diffuse gliomas in China (2011–2017): a multicenter retrospective study from CGGA. Cancer Biology & Medicine, 2022, 19(10): 1460-1476.








Web of Science




Received: 05 August 2022
Accepted: 05 September 2022
Published: 03 November 2022
©2022 Cancer Biology & Medicine.

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