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Table 1 Multivariate analyses of associations between prognostic factors and patient outcome.

From: Evaluation of prognostic markers for canine mast cell tumors treated with vinblastine and prednisone

Variable N Median DFI* DFI p-value Median OS time# OS time p-value
   (months)   (months)  
Histologic grade      
Grade 2 18 14.1 0.022 21.5 0.01
Grade 3 10 7   9.2  
KIT staining pattern+      
Pattern 2 20 12.7 0.0022 19 0.0049
Pattern 3 6 6.7   10.8  
c-KIT mutation      
No 24 11 0.0413 17.4 0.0112
Yes 4 6.5   8.9  
  1. *DFI: disease-free interval.
  2. #OS: overall survival.
  3. +Two KIT pattern 1 MCTs were excluded from statistical analyses.