Investigation of the factors influencing surgical treatment of duodenal gastrointestinal stromal tumors

Table 4 Univariate and multivariate logistic analyses of different surgical procedures

Characteristics	Univariate logistics analysis			Multivariate analysis
	OR	95%CI	P value	OR	95%CI	P value
Age (yr)
< 62	Reference
≥ 62	0.538	0.218-1.323	0.177
Gender
Male	Reference
Female	0.990	0.407-2.409	0.983
Tumor size (cm)
< 5.0	Reference			Reference
≥ 5.0	3.286	1.215-8.888	0.0261	1.733	0.383-7.833	0.475
Location
Other parts	Reference			Reference
Descending part	3.173	1.209-8.326	0.0191	2.250	0.777-6.516	0.135
Risk grade
Very low and low	Reference			Reference
Medium and high	5.134	1.560-16.891	0.0071	2.597	0.444-15.179	0.289

¹Statistically significant. OR: Odds ratio.