Relationship between Ki-67 and CD44 expression and microvascular formation in gastric stromal tumor tissues

Table 2 Relationship between the expression of different CD44 proteins and characteristics of gastric stromal tumors, n (%)

Index	CD44 protein positive (n = 59)	CD44 protein negative (n = 27)	χ2	P value
Age (yr)			1.176	0.278
≥ 60	32 (54.24)	18 (66.67)
< 60	27 (45.76)	9 (33.33)
Gender			0.884	0.347
Male	26 (44.07)	9 (33.33)
Female	33 (55.93)	18 (66.67)
Lesion site			1.283	0.256
Gastric antrum	7 (11.86)	5 (18.52)
Body of stomach	12 (20.34)	7 (25.93)
Base of stomach	40 (67.80)	15 (55.56)
Risk classification			6.534	0.038
Very low risk	18 (30.51)	14 (51.85)
Low risk	27 (45.76)	12 (44.44)
Medium and high risk	14 (23.73)	1 (3.70)
Mitosis			6.822	0.009
≤ 5	36 (61.02)	24 (88.89)
> 5	23 (38.98)	3 (11.11)
Lesion diameter (cm)			1.584	0.208
> 2.0 cm	41 (69.49)	15 (55.56)
≤ 2.0 cm	18 (30.51)	12 (44.44)