Table 2.

The relationships between tumor thickness and submucosal invasion thickness versus the depth of invasion level and the presence of lymph node metastasis in the total 271 patients

Characteristics	Total	m2	m3	sm1	sm2	sm3	Lymph node metastasis (%)
Total	271	22	30	23	55	141	53 (20)
Tumor thickness
<1000µm	19	13	5	1	0	0	0 (0)
≥1000µm and <2000µm	36	6	11	8	9	2	2 (6)
≥2000µm and <3000µm	43	3	5	4	20	11	4 (9)
≥3000µm and <4000µm	45	0	2	6	11	26	11 (24)
≥4000µm and <5000µm	28	0	1	1	6	20	9 (32)
≥5000µm and <6000µm	31	0	0	0	3	28	10 (32)
≥6000µm and <7000µm	22	0	1	0	1	20	5 (23)
≥7000µm and <10000µm	24	0	1	2	1	20	5 (21)
≥10000µm	23	0	4	1	4	14	7 (30)
Submucosal invasion thickness
Not beyond muscularis mucosae	52	22	30	0	0	0	2 (4)
<500µm	20	0	0	16	4	0	2 (10)
≥500µm and <1000µm	29	0	0	3	20	6	4 (14)
≥1000µm and <1500µm	30	0	0	1	17	12	4 (13)
≥1500µm and <2000µm	25	0	0	0	6	19	4 (16)
≥2000µm and <2500µm	23	0	0	1	2	20	8 (35)
≥2500µm and <3000µm	26	0	0	1	2	23	8 (31)
≥3000µm and <4000µm	27	0	0	1	3	23	5 (19)
≥4000µm and <5000µm	20	0	0	0	1	20	10 (50)
≥5000µm	19	0	0	0	0	19	6 (32)
Lymph node metastasis (%)		0	2(7)	4(17)	7(13)	40(28)