Prognosis factors of advanced gastric cancer according to sex and age

Table 7 Analysis of lymph node metastasis according to age using a logistic regression model

Characteristic	≤ 60 yr old			> 60 yr old
	P value	OR	95%CI	P value	OR	95%CI
Sex
Male		1.000			1.000
Female	0.066	0.762	0.571-1.018	0.543	0.910	0.670-1.235
Tumour size
≤ 5 cm		1.000			1.000
> 5 cm	0.001	0.452	0.344-0.594	0.020	0.707	0.528-0.947
Lymphovascular invasion
No		1.000			1.000
Yes	0.001	0.312	0.239-0.407	0.001	0.406	0.307-0.536
Depth of invasion
Muscularis propria	0.024	0.169	0.036-0.790	0.452	1.477	0.535-4.077
Sub-serosal	0.046	0.211	0.046-0.975	0.444	1.481	0.541-4.056
Serosal exposed	0.122	0.298	0.064-1.381	0.332	1.659	0.597-4.607
Serosal invasion	0.324	0.422	0.076-2.341	0.503	1.571	0.418-5.903
Histology
Tubular adenocarcinoma (well)		1.000			1.000
Tubular adenocarcinoma (moderate)	0.340	0.644	0.261-1.589	0.088	0.465	0.193-1.121
Tubular adenocarcinoma (poor)	0.788	0.885	0.364-2.151	0.031	0.381	0.158-0.918
Signet ring cell carcinoma	0.909	0.947	0.370-2.424	0.166	0.496	0.184-1.339
Mucinous adenocarcinoma	0.483	0.677	0.228-2.014	0.068	0.346	0.111-1.080

OR: Odds ratio; CI: Confidence interval.