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Fig. 1 | BMC Neurology

Fig. 1

From: Establishment of age group classification for risk stratification in glioma patients

Fig. 1

Cumulative age distribution and T test of the average age at diagnosis of different types of glioma. a Cumulative age distribution of WHO I-IV grade glioma, the mean age of glioma patients increases with the WHO grade (WHO I: 21.9 years, WHO II: 33.6 years, WHO III: 38.9 years and WHO IV: 46.3 years, respectively). b The diagnosed age boxplot figure of WHO I-IV grade glioma. c Cumulative age distribution of anaplastic astrocytoma and diffuse astrocytoma, there is likely for an earlier manifestation in diffuse astrocytoma. d The average age at diagnosis of anaplastic astrocytoma and diffuse astrocytoma. e Cumulative age distribution of Oligodendroglioma and anaplastic oligodendroglioma, most of oligodendroglioma and anaplastic oligodendroglioma arise in adults, with peak incidence in patients aged 30–50 years. f The diagnosed age boxplot figure of oligodendroglioma and anaplastic oligodendroglioma. g Cumulative age distribution of Oligoastrocytoma and anaplastic oligoastrocytoma, the median ages of patients with oligoastrocytoma are 34.0 years. The median age of patients with anaplastic oligoastrocytoma is 42.5 years. h The diagnosed age boxplot figure of oligoastrocytoma and anaplastic oligoastrocytoma

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