The Danish study included 365,550 teenagers and women who had an abortion or first-time delivery between 1995 and 2007. None had a history of psychiatric problems that required hospitalization.

The Danish study included 365, 550 teenagers and women who had an abortion or first-time delivery between 1995 and 2007. None had a history of psychiatric problems that required hospitalization.

"A woman should know that her risk of having a psychiatric episode is not increased" after an abortion, said Trine Munk-Olsen of Aarhus University, who led the study.