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Table 1 Comparison of p-ERK expression with tumor grade in astrocytic glial tumors

From: The critical role of ERK in death resistance and invasiveness of hypoxia-selected glioblastoma cells

WHO grade Expression of p-ERK (%)
    1+ 2+ 3+ 4+
Low grade Grade I (n = 7) 2 (28) 3 (43) 2 (28) 0 (0)
  Grade II (n = 3) 0 (25) 2 (50) 1 (25) 0 (0)
High grade Grade III (n = 3) 0 (0) 0 (0) 2 (67) 1 (33)
  Grade IV (n = 7) 0 (0) 0 (0) 3 (43) 4 (57)
  1. p = 0.006, analyzed by Pearson Chi-Square test.