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Table 2 Samples numbers in FGFR1 low, FGFR1 high, FGFR3 low, and FGFR3 high groups in respect to tumor location, tumor grade and patient age

From: Clinical association analysis of ependymomas and pilocytic astrocytomas reveals elevated FGFR3 and FGFR1 expression in aggressive ependymomas

  FGFR1 low FGFR1 high FGFR3 low FGFR3 high
Tumor location
 Spinal 37 6 41 2
 Cerebellar 21 4 23 5
 Cerebral 16 20 20 15
p-value 0.0001   0.0002  
Tumor grade
 I 16 2 18 0
 II 50 15 54 14
 III 10 13 14 8
p-value 0.002   0.013  
Patient age
 < 16 22 12 23 12
 > =16 50 18 61 10
p-value 0.15   0.055  
  1. p-values have been calculated using Fisher’s exact test. High: Moderate-to-strong immunostaining, Low: Negative-to-low immunostaining