Early gastric cancer diagnostic ability of ultrathin endoscope loaded with laser light source

Table 5 Comparison of intragastric observation time, biopsy implementation rate, and biopsy prediction rate between the two groups

	Ultrathin endoscope	Conventional endoscope	P value
Observation time of stomach in min	4.1 ± 1.7	4.1 ± 1.9	0.96
Biopsy implementation rate	31.8% (41/129) (95%CI 23.8-39.8)	41.1% (53/129) (95%CI 32.6-49.6)	0.12
Biopsy prediction rate	17.9% (10/56) (95%CI 7.9-27.9)	13.2% (9/68) (95%CI 5.2-21.2)	0.48

CI: Confidence interval.