Obesity is associated with increased morbidity and mortality. Surgery for morbid obesity is considered when other treatments have failed. A number of procedures are available, but the effects of these surgical procedures compared with medical management and with each other are uncertain.
University of Southampton, Southampton Health Technology Assessments Centre, Boldrewood, Mailpoint 728, Southampton, Hampshire, UK SO16 7PX. j.colquitt@soton.ac.uk