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 | Â | Â | Â | Â | Â |
Grade 2 | 18 | 14.1 | 0.022 | 21.5 | 0.01 |
Grade 3 | 10 | 7 | Â | 9.2 | Â |
KIT staining pattern+ | Â | Â | Â | Â | Â |
Pattern 2 | 20 | 12.7 | 0.0022 | 19 | 0.0049 |
Pattern 3 | 6 | 6.7 | Â | 10.8 | Â |
c-KIT mutation | Â | Â | Â | Â | Â |
No | 24 | 11 | 0.0413 | 17.4 | 0.0112 |
Yes | 4 | 6.5 | Â | 8.9 | Â |