Narrow-Band Imaging Magnifying Endoscopy versus Lugol Chromoendoscopy with Pink-Color Sign Assessment in the Diagnosis of Superficial Esophageal Squamous Neoplasms: A Randomised Noninferiority Trial

Table 6

Comparison of examination times between NBI-ME and LCE-PS (Per-protocol analysis).

Examination time	NBI-ME ( = 147)	LCE-PS ( = 147)
Median, s (range)	234 (92–1459)	349 (246–655)	<0.001

NBI-ME: narrow-band imaging magnifying endoscopy; LCE-PS: Lugol chromoendoscopy with pink-color sign assessment; Mann-Whitney test.