Colorectal cancer risks are lower with high-quality colonoscopies.

Higher-quality colonoscopies, as determined by adenoma detection rates, may reduce the risk of colon cancer and colon cancer mortality by 50% to 60%, according to study data on nearly 57,600 patients in the Kaiser Permanente Northern California health care system published in JAMA. Researchers developed a microsimulation model to estimate lifetime benefits, complications and costs of an initial colonoscopy and found estimated net screening costs averaged 3.2% for each five percentage-point increase in ADR.

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