Clinical Features of False-Negative Early Gastric Cancers: A Retrospective Study of Endoscopic Submucosal Dissection Cases

Table 2

Comparison between the detected and last missed endoscopy.

	Detected endoscopy ()		Last missed endoscopy ()		value
Symptom					0.65
Symptomatic	12	(10.1%)	10	(8.4%)
Asymptomatic	107	(89.9%)	109	(91.6%)
Purpose					0.81
Screening	43	(36.1%)	43	(36.1%)
Surveillance	37	(31.1%)	33	(27.7%)
Annual medical checkup	39	(33.0%)	43	(36.1%)
Endoscopist					<0.05
Experienced	86	(72.3%)	68	(57.1%)
Trainee	33	(27.7%)	51	(42.9%)
Endoscope					0.42
Normal	73	(61.3%)	74	(62.2%)
Small-diameter	35	(29.4%)	39	(32.8%)
Magnifying	11	(9.2%)	6	(5.0%)
Duration (sec)	519	[427–618]	433	[371–531]	<0.01
Numbers of pictures	72	[65-83]	66	[58-72]	<0.01
Sedative drug use	3	(2.5%)	4	(3.4%)	0.70
L-menthol use	6	(5.0%)	4	(3.4%)	0.52
Indigo carmine use	118	(99.2%)	102	(85.7%)	<0.01
Biopsies	116	(97.5%)	56	(47.1%)	<0.01

Data are presented as median (IQR) or (%).