Featured in Journal Watch: Colonoscopy Protects Against Colorectal Cancer for as Long as 20 Years

After a single negative colonoscopy, the age- and sex-adjusted odds ratios for colorectal cancer at the following intervals were 0.14 (1–2 years), 0.10 (3–4 years), 0.26 (5–9 years), 0.36 (10–19 years), and 0.41 (20 years or more). The findings from this case-control study offer additional support for clinicians following the U.S. guidelines to perform colonoscopy at 10-year rather than 5-year intervals.