Clinicopathological characteristics of clinical early gastric cancer in the upper-third stomach

Table 1 Clinicopathological characteristics of cT1 gastric cancer in the upper-third stomach

	Upper	Middle or Lower	P value
Age (yr)	66.1	62.8	0.029
Sex
Male	94	344
Female	34	211	0.015
Macroscopic1
Localized	37	148
Diffuse	91	405	0.620
Unknown	0	2
Histology
Diff.2	87	301
Undiff.3	41	247	0.0072
Unknown	0	7
Size (mm)	30.9	28.9	0.340
pT4
T1	107	519
T2	21	35	< 0.0001
Unknown	0	1
pN5
Negative	115	523
Positive	13	32	0.071
ly6
Negative	98	457
Positive	27	82	0.082
Unknown	3	16
v7
Negative	110	497
Positive	15	42	0.130
Unknown	3	16

¹Macroscopic: Macroscopic findings;

²Diff.: Differentiated adenocarcinoma;

³Undiff.: Undifferentiated adenocarcinoma;

⁴pT: Pathological T-category;

⁵pN: Pathological lymph node metastasis;

⁶ly: Lymphatic invasion;

⁷v: Venous invasion.

Table 2 Comparison of clinicopathological factors between accurate- and under-diagnosis groups

	Accurate diagnosis	Under diagnosis	P value
Age (yr)
< 65	44	9
≥ 65	63	12	0.088
Sex
Male	77	17
Female	30	4	0.390
Macroscopic1
Localized	33	4
Diffuse	74	17	0.280
Histology
Diff.2	76	11
Undiff.3	31	10	0.094
Size (mm)
< 40	81	11
≥ 40	26	10	0.024
Unknown	3	1

¹Macroscopic: Macroscopic findings;

²Diff.: Differentiated adenocarcinoma;

³Undiff.: Undifferentiated adenocarcinoma.