Men develop it
earlier than
females. 40% of
males and 25%
of females have
developed by 19
Highly genetic disease.
40-50% identical twins,
6-8% fraternal twins, 80%
herertability risk, 10.8
times sibling risk than
population risk
Eating Disorders
Incidence of BN of
Australian females is
10.5%, mortality of AN
5%, BN, 2.2%. In US, all
eating disorders
account for 5%
epidemiology, 0.5% AN
and 0.5% BN