The study was headed by Elisabet Wentz, M.D., Ph.D., an associate professor of child and adolescent psychiatry at the University of Gothenburg in Sweden. It included 48 women, average age 32, whom the researchers had diagnosed with anorexia as teens. It also included 48 women matched on age and school attended, but whom the researchers had not diagnosed with anorexia as teens. The latter served as a control group. The researchers had been following the outcomes of both groups since the subjects were teens.