Table 1. Impact of the assessor level on interobserver agreement.

Classification
Krippendorff alpha coefficient	Paris	LST	Kudo	Sano	NICE	WASP	CONECCT
Overall	0.281	0.599	0.490	0.528	0.559	0.682	0.738
Expert	0.356	0.607	0.580	0.589	0.545	0.770	0.799
Gastroenterologist	0.292	0.645	0.500	0.619	0.612	0.657	0.733
Intern	0.209	0.507	0.399	0.341	0.467	0.654	0.692

LST, lateral spreading tumor; NICE, International Colorectal Endoscopic Classification; WASP, Workgroup serrAted polypS and Polyposis; CONECCT, COlorectal NEoplasia Classification to Choose the Treatment; CONECCT, COlorectal NEoplasia Classification to Choose the Treatment.