Risk factor analysis affecting survival in patients with low-grade astrocytoma
astrocytoma, Tumor
DIFFUSE ASTROCYTOMA, ASTROCYTOMA, TUMOR
By univariate Kaplan–Meier survival curve and log-rank test, Age (P < 0.0001), Primary site (P < 0.0001), Tumor histological type (P < 0.0001), Tumor size (P = 0.01), Extension (P = 0.00013), Surgery (P = 0.00016), Radiation (P < 0.0001), Chemotherapy (P < 0.0001) and Tumor number (P = 0.015) were risk factors affecting the prognosis of patients with low-grade astrocytoma. The established K-M survival curve and log-rank test results showed that the factors of Age ≥ 80 years, Primary site at brainstem, Diffuse astrocytoma, Tumor ≥ 61 mm, deeper Extension, Bilateral, no Surgery, Radiotherapy, Chemotherapy and Tumor number > 1 were all related to poor survival time (Fig. Kaplan Meier survival curve in low-grade astrocytoma patients. (