COVID Has Likely Tripled Depression Rate: BU Study

A first-of-its-kind study from the Boston University School of Public Health (BUSPH) finds 27.8% of U.S. adults had depression symptoms as of mid-April, compared to 8.5% before the COVID-19 pandemic.

Published in the journal JAMA Network Open, the study also found that income and savings are the most dramatic predictors of depression symptoms in the time of COVID.

“Depression in the general population after prior large scale traumatic events has been observed to, at most, double,” says study senior author Dr. Sandro Galea, Dean and Robert A. Knox Professor at BUSPH, citing examples such as September 11, the Ebola outbreak, and civil unrest in Hong Kong.

“We were surprised to see these results at first, but other studies since conducted suggest similar-scale mental health consequences,” Galea says. These studies have mainly been conducted in Asia and focused on specific populations such as healthcare workers and college students (one such study found depression symptoms among half of Chinese healthcare workers who had treated COVID patients).

But the new BUSPH study is the first nationally-representative study in the U.S. to assess the change in depression prevalence before and during COVID using the Patient Health Questionnaire-9 (PHQ 9), the leading self-administered depression screening tool.

The researchers used data from 5,065 respondents to the 2017-2018 National Health and Nutrition Examination Survey (NHANES), and 1,441 respondents from the COVID-19 Life Stressors Impact on Mental Health and Well-Being (CLIMB) study, which was conducted from March 31 to April 13, 2020, when 96% of the U.S. population was under stay-at-home advisories or shelter-in-place policies.

Both surveys used the PHQ 9 to assess depression symptoms and gathered the same demographic data, and the 2020 survey also gathered data on COVID-related stressors including job loss, the death of a friend or loved one from COVID, and financial problems.

Across the board, the researchers found an increase in depression symptoms among all demographic groups. Not surprisingly, experiencing more COVID-related stressors was a major predictor of depression symptoms.

However, the biggest demographic difference came down to money. After adjusting for all other demographics, the researchers found that, during COVID, someone with less than $5,000 in savings was 50% more likely to have depression symptoms than someone with more than $5,000.

“Persons who were already at risk before COVID-19, with fewer social and economic resources, were more likely to report probable depression, suggesting that inequity may increase during this time and that health gaps may widen,” says study lead author Catherine Ettman, a doctoral student at the Brown University School of Public Health and director of strategic development in the Office of the Dean at BUSPH.

“We would hope that these findings promote creating a society where a robust safety net exists, where people have fair wages, where equitable policies and practices exist, and where families can not only live on their income but can also save money towards the future,” she says.

As COVID continues to grip the country, Ettman says, “There may be steps that policymakers can take now to help reduce the impact of COVID-19 stressors on depression, such as eviction moratoria, providing universal health insurance that is not tied to employment, and helping people return to work safely for those able to do so.”

At the same time, Ettman says she and her colleagues hope the study findings will also help those who are experiencing depression in this incredibly difficult time see that they are not alone: On the contrary, one in four U.S. adults is probably going through the same thing.

Sources:
Boston University School of Medicine
Journal Article

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