title: Correlation between adenoma and serrated lesion detection rates in an unselected outpatient population.
abstract: BACKGROUND
  Serrated lesions have been recently implicated in colorectal carcinogenesis. Adenoma detection rate has been related with the risk of interval cancer. The correlation between adenoma detection rate and the serrated lesion detection rate is unclear.
  
  
  OBJECTIVE
  To assess the correlation between adenoma- and serrated lesion-detection rate in an unselected setting of outpatient colonoscopies.
  
  
  METHODS
  Consecutive outpatients were retrospectively evaluated in one centre. Detection rates were expressed as number of patients with at least one serrated lesion or adenoma. For each endoscopist, correlation between adenoma detection rate and serrated lesions detection rate was calculated.
  
  
  RESULTS
  Six endoscopists performed 2974 colonoscopies. 3240 lesions (59.5% adenomas, 37.8% serrated lesions, 0.5% cancer, and 2.3% other histology) were detected in 1228 procedures. Median adenoma detection rate and serrated lesions detection rate per endoscopist were 29.3% and 22.4%, respectively. A positive correlation between adenoma and serrated lesion detection rate (r(2)=0.78, p<0.001) was detected.
  
  
  CONCLUSIONS
  Our study showed a statistically significant correlation between adenoma detection rate and serrated detection rate.
authors: Gastroenterology and Endoscopic Unit, Maggiore della Carità University Hospital, Novara, Italy.
authors: Pietro
authors: P
authors: Occhipinti
authors: Gastroenterology and Endoscopic Unit, Maggiore della Carità University Hospital, Novara, Italy. Electronic address: silvia.saettone@maggioreosp.novara.it.
authors: Silvia
authors: S
authors: Saettone
authors: Pathology Unit, S.S. Trinità Hospital ASL NO, Borgomanero, Italy.
authors: Silvia
authors: S
authors: Cristina
authors: Endoscopic Unit, Nuovo Regina Margherita Hospital, Rome, Italy.
authors: Lorenzo
authors: L
authors: Ridola
authors: Endoscopic Unit, Nuovo Regina Margherita Hospital, Rome, Italy.
authors: Cesare
authors: C
authors: Hassan
mesh_terms: D000236:Adenoma / Q000473:pathology*; D000328:Adult; D000368:Aged; D002983:Clinical Competence / Q000706:statistics & numerical data*; D003110:Colonic Neoplasms / Q000473:pathology*; D003111:Colonic Polyps / Q000473:pathology*; D003113:Colonoscopy / Q000592:standards* / Q000706:statistics & numerical data; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015588:Observer Variation; D010045:Outpatients; D019984:Quality Indicators, Health Care / Q000706:statistics & numerical data*; D012189:Retrospective Studies
keywords: Adenoma detection rate; Polyps; Serrated lesions detection rate