Recent advances in diagnostic upper endoscopy

Table 2 Summary of studies reporting effect of endoscopy examination time on detection rates during upper endoscopy

Ref.	Country of origin	Study design	Sample size	Classification timings	Findings
Teh et al[14], 2015	Singapore	Retrospective database	837	Fast < 7 min	Slow endoscopists twice likely yo detect high risk lesions than fast endoscopist (OR = 2.5, 95%CI: 1.52-4.12)
				Slow > 7 min
Kawamura et al[43], 2017	Japan	Retrospective database	15763	Fast < 5 min	OR for neoplastic lesion detection for moderate and slow group was 1.9 (95%CI: 1.06–3.4 ) and 1.89 (95%Cl: 0.98–3.64) respectively
				Moderate 5-7 min
				Slow > 7 min
Park et al[44], 2017	South Korea	Retrospective database	111962	Fast < 3 min	Slow endoscopists more likely to detect gastric adenomas/carcinomas than fast endoscopist (OR = 1.52, 95%CI: 1.17–1.97)
				Slow > 3 min
Yoshimizu et al[45], 2018	Japan	Retrospective database	3925	Fast < 7 min	No difference in neoplasm pick up rates amongst the 3 groups
				Moderate 7-10 min
					Endoscopists > 1 yr of intensive training picked up more lesions
				Slow > 10 min