Increases in depression without commensurate increases in treatment are widespread, reports a study conducted at Columbia University Mailman School of Public Health and City University of New York. In 2020, past 12‒month depression was prevalent among nearly 1 in 10 Americans and almost 1 in 5 adolescents and young adults. The findings will be published online in the American Journal of Preventive Medicine.

Data were drawn from the 2015−2020 National Survey on Drug Use and Health, a nationally representative study of U.S. individuals aged 12 years and older. Major depression is the most common mental disorder in the U.S. and is the strongest risk factor for suicide behavior. Previous findings show increases in depression in the U.S. population from 6.6 percent in 2005 to 7.3 percent in 2015.

"Our study updates the depression prevalence estimates for the U.S. population through the year 2020 and confirms escalating increases in depression from 2015 through 2019, reflecting a public health crisis that was intensifying in the U.S. even before the onset of the pandemic," said Renee D. Goodwin, Ph.D., an adjunct professor in the Department of Epidemiology at Columbia Mailman School of Public Health and professor of Epidemiology at The City University of New York of New York, and lead author.

"The net effect of these trends suggests an accelerating public health crisis and that parity and public-service announcement efforts have not achieved equity in depression treatment."

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