. 2015 Jul 8;10(7):e0129531. doi: 10.1371/journal.pone.0129531

Table 1. Correlation between LNM and clinicopathological factors of 205 EGC patients.

Clinicopathological parameters	na	LNM		χ²	P Value
Clinicopathological parameters		Positive	Negative
All	205	52	153
Age (years)
<55	105	31	74	1.966	0.161
≥55	100	21	79
Gender				3.966	0.046^*
Male	130	27	103
Female	75	25	50
Tumor size				5.690	0.017^*
<3 cm	127	25	102
≥3 cm	78	27	51
Tumor location				4.802	0.280
Fundus /cardia	25	2	23
Body	39	11	28
Antrum	141	39	100
Tumor infiltration				4.509	0.034^*
T1a	97	18	79
T1b	108	34	74
Differentiation				11.201	0.001^*
Well/mid	66	7	59
Poorly/signet ring cell	139	45	94
General shape
Protruded	9	2	7	2.361	0.307
Flat	66	21	45
Excavated	130	29	101
CEA (ng/ml)				2.552	0.110
≤5	183	50	133
>5	22	2	20
CA199 (U/ml)				2.478	0.115
≤35	194	47	147
>35	11	5	6
CA724 (U/ml)				1.575	0.210
≤5	183	44	39
>5	22	8	14
Vessel invasion				8.723	0.003^*
Positive	10	7	3
Negative	195	45	150

^a Numbers of cases in each group.

* Statistically significant (P<0.05)