Role of Ki-67 as a prognostic factor in gastrointestinal stromal tumors

Table 2 Multivariate analysis of different parameters for survival in all analyzed patients (n =100)

Parameter	Beta	Standard error	t value	P value
Tumor size	0.04	0.03	1.12	0.26
Mitosis	-0.01	0.01	-0.91	0.35
Necrosis	0.76	0.73	1.04	0.29
Haemorrhage	-0.63	0.68	-0.93	0.35
Ki-67	0.05	0.02	1.83	0.06
c-KIT	1.44	0.79	1.83	0.06
SMA	0.19	0.51	0.38	0.70
S100	-0.33	0.67	-0.49	0.62
CD34	-0.34	0.52	-0.66	0.50
Cell morphology	-0.19	0.52	-0.37	0.70

SMA: Smooth muscle actin.