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Table 2 Cox regression model to analyze the overall survival in ependymomas

From: Clinical significance of the histological and molecular characteristics of ependymal tumors: a single institution case series from China

Clinicopathologic features Multivariate analysis
Risk ratio 95% CI P
Tumor location 0.898 0.279–2.891 0.854
necrosis 166,316.130 0.000–3.995E+ 142 0.941
mitosis 0.515 0.128–2.071 0.350
Ki67 index 8.538 1.158–62.958 0.035*
  1. CI, confidence interval, *P < 0.005 represents statistically significant