Analysis of Predictors for Lymph Node Metastasis in Patients with Superficial Esophageal Carcinoma

Table 1

Relationship between clinicopathological factors and lymph node metastasis.

Correlational analyses		Cases	Cases of lymph node metastasis	Rate of lymph node metastasis	value
Sex	Male	72	10	13.9	0.728
	Female	21	2	9.5
Age	≤60 years	60	9	15.0	0.529
	>60 years	33	3	9.1
Tumor size	≤10 mm	26	0	0.0	0.017
	11–20 mm	35	6	17.1
	21–30 mm	20	3	15.0
	≥31 mm	9	3	33.3
Pathological type	Squamous carcinoma	86	12	14.0	0.589
	Others	7	0	0.0
Differentiation	Good	33	0	0.0	0.005
	Moderate	42	7	16.7
	Low	18	5	27.8
Macroscopic type	0-I	43	9	20.9	0.064
	0-II	41	2	4.9
	0-III	9	1	11.1
Location	Upper	3	0	0.0	0.578
	Middle	56	6	10.7
	Low	34	6	17.6
Depth of invasion	m1	9	0	0.0	0.046
	m2	9	0	0.0
	m3	19	1	5.3
	sm1	23	2	8.7
	sm2	17	3	17.6
	sm3	16	6	37.5
Lymphvacular infiltration	Negative	65	3	4.6	0.001
	Positive	28	9	32.1

P values were calculated by the Fisher exact probability test.