Clinical and prognostic significance of Raf kinase inhibitory protein expression in gastrointestinal stromal tumors

Table 1 Clinicopathological data of the 63 patients with gastrointestinal stromal tumors

Characteristic	Patients (n = 63)
	Number	Percentage (%)
Gender
Male	33	52.4
Female	30	47.6
Age (yr)
≥ 56	32	50.8
< 56	31	49.2
Tumor location
Stomach	35	55.6
Duodenum	12	19.0
Jejunoileum	14	22.2
Colon	2	3.2
Tumor size (cm)
< 2	11	17.5
2-5.9	20	31.7
6-10	18	28.6
> 10	14	22.2
NIH risk grade
Very low	10	15.9
Low	19	30.1
Moderate	10	15.9
High	24	38.1
Mitotic figures per 50 HPFs
0	11	17.5
1-4	35	55.6
5-9	6	9.4
>10	11	17.5
Mucosal invasion
Yes	33	52.4
No	30	47.6

HPFs: High-power fields.