BETHESDA, Md. and BOWIE, Md., April 28 /PRNewswire/ -- The American Gastroenterological Association (AGA) and MedAssurant, Inc., announce the launch of the largest patient registry in the GI field, the AGA Digestive Health Outcomes Registry™. The AGA Registry captures data and tracks outcomes related to inflammatory bowel disease (IBD) and colorectal cancer (CRC) prevention. Unique in the history of registry launches, the registry starts with a foundation of clinical data from more than 4.3 million patients with IBD or who have had screening colonoscopies.