Table 3.

Univariate analyses of prognostic parameters for survival in patients with gastrointestinal stromal tumor (GIST)

	Univariate analysis
Prognostic parameter	HR	95% CI	p value
Expression of BDNF (High vs Low)	5.455	1.843–16.145	0.002
Age (> 59 vs. ≤ 59)	1.829	0.780–4.287	0.165
Gender (Male vs. Female)	0.516	0.210–1.266	0.148
Modified NIH criteria (High risk vs. Intermediate risk & Low risk & Very low risk)	6.323	1.882–21.242	0.003
Tumor size (> 10 cm vs. ≤ 10 cm)	9.917	4.042–24.335	< 0.001
Mitotic figures (> 5 vs. ≤ 5)	24.800	5.795–106.130	< 0.001
Tumor bleeding (yes vs. no)	0.342	0.080–1.471	0.150
Serosal invasion (yes vs. no)	6.782	2.927–15.716	< 0.001
Recurrence (yes vs. no)	88.361	11.882–657.121	< 0.001
Ki67 classification (III vs. II & I)	2.363	1.493–3.738	< 0.001