The percentage of US adults with depression symptoms more than tripled earlier this year as the coronavirus pandemic tightened its grip on the country, according to a new study led by researchers at Boston University. Researchers found that 27.8 percent of U.S. adults had depression symptoms as of mid-April, compared with 8.5 percent before the pandemic, the university said in a statement. The study, published in the journal JAMA Network Open, found that lower income and savings were factors associated with a greater likelihood of depression symptoms.