title: [Correlation between adenoma detection rate and advanced adenoma detection rate].
abstract: OBJECTIVE
  Adenoma detection rate (ADR) is widely used as an index of colonoscopy quality management. Although advanced adenomas can be found less frequently than non-advanced adenomas, advanced adenomas have a higher clinical significance during screening for colorectal cancer. The aim of this study was to investigate the correlation between advanced and non-advanced ADR among colonoscopists.
  
  
  METHODS
  This study is an observational study of a cohort of patients undergoing screening colonoscopy between 2009 and 2010. We collected the data on patients' characteristics and colonoscopic findings. The detection rates of adenoma and advanced adenoma were calculated. Logistic regression was used to determine the effects of variables on advanced adenoma detection, and spearman's rank-order correlation was used to evaluate the relationship between advanced ADR and ADR.
  
  
  RESULTS
  A total of 561 patients underwent screening colonoscopy by 18 experienced colonoscopists. Most colonoscopists had adequate (>20%) ADRs. Logistic regression showed that increased patient age (OR 1.07 per 1 year increase, 95% CI 1.009-1.133, p=0.023) and male gender (OR 1.860, 95% CI 0.764-4.529, p=0.171) were associated with advanced ADR. When colonoscopists were divided into two groups on the basis of advanced ADR of 5%, ADR was also significantly higher in the group having higher level of advanced ADR. However, there was no correlation between advanced ADR and ADR among colonoscopists as an individual.
  
  
  CONCLUSIONS
  Colonoscopists' advanced ADRs were independent of their ADRs, indicating that advanced ADR could be quite low even among colonoscopists with acceptable ADRs. Thus, there seems to be a limitation in using ADR as an adequate index of colonoscopy quality management.
authors: Department of Internal Medicine, Kangbuk Samsung Hospital, 29 Saemunan-ro, Jongno-gu, Seoul 110-746, Korea.
authors: Shin Yeoung
authors: SY
authors: Lee
authors: Nam Hee
authors: NH
authors: Kim
authors: Hyun Beom
authors: HB
authors: Chae
authors: Ki Joong
authors: KJ
authors: Han
authors: Tae Hoon
authors: TH
authors: Lee
authors: Choel Min
authors: CM
authors: Jang
authors: Kyung Mo
authors: KM
authors: Yoo
authors: Yoon Suk
authors: YS
authors: Jung
authors: Jung Ho
authors: JH
authors: Park
authors: Hong Joo
authors: HJ
authors: Kim
authors: Yong Kyun
authors: YK
authors: Cho
authors: Chong Il
authors: CI
authors: Sohn
authors: Woo Kyu
authors: WK
authors: Jeon
authors: Byung Ik
authors: BI
authors: Kim
authors: Dong Il
authors: DI
authors: Park
mesh_terms: D000236:Adenoma / Q000175:diagnosis*; D000328:Adult; D000368:Aged; D015331:Cohort Studies; D003113:Colonoscopy; D015179:Colorectal Neoplasms / Q000175:diagnosis*; D055088:Early Detection of Cancer; D005260:Female; D006801:Humans; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D016017:Odds Ratio