Our aim is to complete a survey study of patients who have undergone Adjustable Gastric Band (AGB) surgery at the University of Washington Medical Center (UWMC) and expanded to other bariatric surgical sites outside the University of Washington (UW), which will obtain a HIPAA waiver and a letter of cooperation) between April 1, 2007 and July 1, 2008. (Please note the University of Washington team will not have access to the site's list of patients, only access to coded returned surveys sent back from patients). Patients will be identified by obtaining operative case lists from the Department of Surgery Quality Improvement Team who maintain monthly records of bariatric procedures performed. We will obtain patient contact information (address) and patients will be contacted by mail with the request that they complete both the Adjustable Gastric Band (AGB) Health Survey and a standard Quality of Life survey (EQ5D). The mailing will include an Information Statement, the AGB Survey, the EQ5D, and a stamped return envelope. As an incentive, a $2 bill will be sent along with the first mailing to cover the costs of completing and returning the surveys. Patients who do not return survey within 30 days will be mailed a second survey. Patients who do not return the second survey within 30 days will be mailed a third survey. Patients who do not return the third survey will not be re-contacted.