Accuracy of Endoscopic Ultrasonography for Determining the Treatment Method for Early Gastric Cancer

Table 3

Univariate analysis of factors affecting accuracy of determinations of the depth of cancer invasion.

	Correct (𝑛)	Incorrect (𝑛)	Accuracy (%)	𝑃 value	Odds ratio	95% CI (%)
Stomach location				0.802
Upper third	40	12	76.9%		1
Middle third	32	13	71.1%	0.514	1.354	0.54–3.37
Lower third	231	78	74.7%	0.738	1.112	0.56–2.25
Macroscopic features				<0.001
Elevated type	131	21	86.1%		1
UL(−) type	148	23	86.5%	0.924	0.969	0.51–1.83
UL(+) type	24	59	28.9%	<0.001	15.33	7.91–29.71
Tumor size				<0.001
≤2 cm	217	36	85.7%		1
>2 cm, ≤3 cm	52	32	61.9%	<0.001	3.709	2.11–6.52
>3 cm	34	35	49.2%	<0.001	6.205	3.44–11.18
Histology
Differentiated	254	60	80.8%		1
Undifferentiated	49	43	53.2%	<0.001	3.715	2.26–6.10
EUS type
US-probe	254	44	85.2%		1
US-endoscope	49	59	45.3%	<0.001	6.951	4.23–11.41

UL(+): ulcerated; UL(−): nonulcerated; EUS: endoscopic ultrasonography; US: ultrasound; ER: endoscopic resection.