Table 2

Summary of adjudication strategy based on interval since last colonoscopy and the presence of a significant lesion in the same section of the colon on prior colonoscopy

Time interval since last colonoscopy
Significant lesion found in same segment on prior colonoscopy≤1 year*>1 year to <3 years†≥3 years‡
YesIncomplete adenoma resection
Or
Failed biopsy detection		Incomplete adenoma
Resection		Incomplete adenoma
Resection
NoMissed lesionMissed lesionNew cancer

  • *Cases required hand review to distinguish.

  • †Significant lesion defined as adenoma with advanced histology or ≥1 cm.

  • ‡Significant lesion defined as adenoma with advanced histology or ≥5 mm.