(CNN) – A new study finds that hormonal contraception, including birth control pills or implants, may increase a woman’s odds of depression and antidepressant medication use.
Danish researches studied more than 1 million women ages 15 to 34.
They found women who used contraceptives had an 80-percent increased risk for depression over those who did not use contraceptives.
The numbers were higher for adolescent girls.
The study is published in Jama Psychiatry.