A year into the COVID-19 pandemic, the share of the U.S. adult population reporting symptoms of elevated depression had more than tripled from prepandemic levels and worsened significantly since restrictions went into effect, a study of more than 1,000 adults surveyed at the start of the pandemic and 1 year into it has reported. The study also found that younger adults, people with lower incomes and savings, unmarried people, and those exposed to multiple stress factors were most vulnerable to elevated levels of depression through the first year of the pandemic.