Depression has become increasingly common among American teenagers – especially teen girls, who are now almost three times as likely as teen boys to have had recent experiences with depression.

In 2017, 13% of U.S. teens ages 12 to 17 (or 3.2 million) said they had experienced at least one major depressive episode in the past year, up from 8% (or 2 million) in 2007, according to a Pew Research Center analysis of data from the 2017 National Survey on Drug Use and Health.

One-in-five teenage girls – or nearly 2.4 million – had experienced at least one major depressive episode (the proxy measure of depression used in this analysis) over the past year in 2017. By comparison, 7% of teenage boys (or 845,000) had at least one major depressive episode in the past 12 months.

The total number of teenagers who recently experienced depression increased 59% between 2007 and 2017. The rate of growth was faster for teen girls (66%) than for boys (44%).

While teenage girls are more likely to have faced depression than their male peers, they are also more likely to have received treatment by seeing a professional or taking medication. Among teen girls who had recent depressive episodes, 45% received treatment for depression over the past year. By comparison, 33% of teen boys with recent depressive episodes received treatment.

The number of adults who had experienced depression also increased from 14.8 million in 2007 to 17.3 million in 2017, though the share remained the same (7%). Adults also differed by gender in their experiences with depression (9% of women vs. 5% of men).

Adults who have experienced depression are treated at higher rates than teens. Among adults who had recent depressive episodes, about two-thirds (67%) received treatment. Again, women who had a recent experience with depression (72%) were more likely than men (58%) to receive treatment.

Teens express concern about anxiety and depression among peers, feel day-to-day pressures

Seven-in-ten U.S. teens said anxiety and depression is a major problem among people their age in the community where they live, according to a Pew Research Center survey of teenagers ages 13 to 17 conducted in fall 2018. An additional 26% cited anxiety and depression as a minor problem.

About three-in-ten teens (29%) said they felt tense or nervous about their day every or almost every day, and 45% said they felt tense or nervous sometimes. About a third of teen girls (36%) reported feeling this way every day or almost every day, compared with 23% of teen boys.

Academic and social pressures are among the reasons cited by experts who have studied teen depression. The Center’s survey asked about some of those pressures teens face in their daily lives. About six-in-ten teens (61%) said they personally felt a lot of pressure to get good grades, while roughly three-in-ten reported a lot of pressure to look good and fit in socially (29% and 28%, respectively).