Multiple births linked to higher risk of anorexia

The cohort of Swedes born from 1975–98 were followed until the end of 2010.

Researchers found several perinatal characteristics which may play causal roles in the development of eating disorders, including twins or triplets have a 33% increased risk compared to singletons.

Anorexia was also independently predicted by lower gestational age in a dose-response pattern. This may indicate early feeding problems or that early gestation affects brain development and stress responses,