RESUMO
BACKGROUND: Interval colorectal cancers may be associated with a low serrated polyp detection rate (SDR) and advanced adenoma detection rate (AADR). We aimed to determine the SDR and AADR for endoscopists in a United States multicenter cohort. METHODS: We included average-risk screening colonoscopies from five medical centers in the United States. Endoscopists with data on at least 100 average-risk screening colonoscopies were included. We calculated median SDR and AADR for endoscopists with adequate adenoma detection rates (ADRs) >â25â%. We analyzed the relationship between ADR and SDR, and between ADR and AADR using nonparametric Spearman correlation coefficients, scatter plots, and linear regression. RESULTS: We included 3513 screening colonoscopies performed by 26 gastroenterologists. The mean age of patients was 56.8 years (SD 7.4) and 1585 (45â%) were male. All but one endoscopist had an ADR above 25â%. There was a significant positive but modest correlation between ADR and SDR (rhoâ=â0.67, Pâ<â0.01), and between ADR and AADR (rhoâ=â0.56, Pâ<â0.01). For endoscopists with an adequate ADR, median (interquartile range) ADR was 43â% (32.0â%â-â48.6â%), median SDR was 8.4â% (7.3â%â-â11.4â%), and median AADR was 9.3â% (6.4â%â-â12.6â%). CONCLUSION: A significant percentage of endoscopists have either a low SDR or low AADR despite an adequate ADR, justifying the need for separate SDR and AADR benchmarks. Based on our multicenter cohort, endoscopists with adequate ADRs had a median SDR and median AADR of about 8â% and 9â%, respectively.