[Retracted] Risk Factors and Prognostic Analysis of Gastrointestinal Stromal Tumor Recurrence-Metastasis

Table 6

Univariate and multivariate COX regression analysis of recurrence and metastasis in patients with gastrointestinal stromal tumors.

	Total ()	Nonrecurrence-metastasis; group ()	Recurrence-metastasis; group ()	Univariate analysis		Multivariate analysis
				Hazard ratio; (95% CI)	value	Hazard ratio; (95% CI)	value
Age	422			1.266 (0.646-2.480)	0.493
≤60		190	15
>60		196	21
Gender	422			1.999 (0.994-4.021)	0.052
Male		178	21
Female		208	15
BMI	381			0.727 (0.392-1.349)	0.312
<18.5		12	2
18.5-23.9		183	17
>23.9		154	13
Drinking history	420			0.648 (0.226-1.859)	0.420
Yes		82	4
No		304	30
Smoking history	419			1.686 (0.772-3.682)	0.190
Yes		75	9
No		311	24
Gastrointestinal bleeding				1.976 (0.887-4.401)	0.096
Yes	422	54	8
No		332	28
Tumor rupture				1.810 (1.245-2.631)	0.002	1.556 (1.020-2.375)	0.040
Yes	422	62	16
No		324	20
Complicated with other tumors	422			0.601 (0.210-1.718)	0.342
Yes		72	4
No		314	32
Tumor location	422			0.262 (0.127-0.541)	0.000	1.786 (1.261-2.5892)	< 0.001
Gastric		287	11
No-gastric		99	25
Tumor size (cm)	422			2.466 (1.743-3.490)	<0.001	1.693 (1.102-2.602)	0.016
≤2.0		161	2
2.1-5.0		141	6
5.1-10.0		59	21
>10.0		25	7
Mitotic count (per 50 HPFs)	415			3.208 (2.171-4.740)	<0.001	2.196 (1.421-3.392)	< 0.001
≤5		324	13
6-10		42	7
>10		14	15
Ki67 ()	403			1.327 (0.606-2.906)	0.479
<5		298	24
>5		71	10
Risk classification				3.865 (1.937-7.712)	<0.001	1.163 (0.527-2.568)	0.009
Low/intermediate	422	301	14
High		85	22

BMI: body mass index. Tumor rupture; tumor location; tumor size; mitotic count; and risk classification.