Table 3.

Days to Development of Additional Mast Cell Tumors or Metastasis by Percentage Class for Histologic Grades According to Patnaik From 95 cases

Class	n	In Class, Mean	Other Classes, Mean	Analysis of Variance		Wilcoxon Rank-Sum
				F	P	χ2	P
Grade 3
> 90%	3	0.87	2.42	0.22	.6391	1.72	.1902
> 80%	3	0.87	2.42	0.22	.6391	1.72	.1902
> 70%	5	4.42	2.25	0.71	.4023	6.90	.0086
> 50%	9	4.12	2.18	0.98	.3254	7.90	.0049
Grade 2
> 80%	5	5.12	2.22	1.28	.2606	3.30	.0695
> 70%	18	2.51	2.34	0.01	.9085	0.15	.6951
> 50%	75	2.42	2.18	0.03	.8631	0.11	.7434
Grade 1
> 80%	4	4.50	2.27	0.60	.4390	0.08	.7827
> 70%	5	3.60	2.30	0.25	.6155	0.00	1.0000
> 50%	23	2.61	2.29	0.06	.8109	0.01	.9391