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A new study features greater statistical power than previous studies to examine the relationship between a colonoscopist's adenoma detection rate (ADR) and a patient's risk for interval colorectal cancer.
Using data from a regional health care system, researchers identified 264,972 colonoscopies undertaken in 223,842 patients aged ≥50 years. During 927,523 person-years of follow-up, 712 interval cancers (defined as cancers diagnosed between 6 months and 10 years after colonoscopy) were diagnosed, representing 8.2% of all colorectal cancers. Among the 136 gastroenterologists involved, the average number of colonoscopies performed was 2150, and ADRs ranged from 7.4% to 52.5%. Physician ADRs were categorized by quintile for analyses.
Results wer…