Clinical value of regional lymph node sorting in gastric cancer

Table 4 Multivariable logistic regression analysis of risk factors of lymph node metastasis in the second dissection station (n = 123)

	B	SE	Wald	df	P value	OR	95%CI
							Upper	Lower
Tumor location
U			0.601	2	0.741
M	-0.299	0.511	0.344	1	0.558	0.741	0.273	2.017
L	-0.358	0.463	0.599	1	0.439	0.699	0.282	1.732
Immersion depth
T1			4.710	3	0.194
T2	1.817	0.875	4.316	1	0.038	6.153	1.108	34.160
T3	0.956	0.922	1.075		0.300	2.601	0.427	15.852
T4	0.884	0.735	1.445	1	0.229	2.420	0.573	10.223
Differentiation degree
DCA/UCA	0.124	0.323	0.147	1	0.701	1.132	0.601	2.130
The number of positive lymph nodes (pieces)
≤ 6/> 6	1.718	0.322	28.541	1	< 0.001	5.576	2.968	10.473
Constant	-1197	0.829	2086	1	0.149	0.302

The Hosmer-Lemshaw test results showed good fit for the multifactorial logistic regression (P = 0.611).

OR: Odds ratio; CI: Confidence interval; U: Upper third; M: Middle third; L: Lower third; DCA: Differentiated carcinoma; UCA: Undifferentiated carcinoma; df: Degree of freedom.