Nonsteroidal Anti-inflammatory Drug Use After 3 Years of Aspirin Use and Colorectal Adenoma Risk: Observational Follow-up of a Randomized Study

Frequent use of nonsteroidal anti-inflammatory drugs (NSAIDs) has been shown to reduce the risk of colorectal adenomas in randomized trials. We examined the persistence of the protective effect after the cessation of randomized aspirin treatment and whether it is affected by the duration and frequency of subsequent NSAID use