The actual number of U.S. children hospitalized due to COVID-19 may be lower than current figures suggest, a new study indicates. That's because counts of hospitalized children who test positive for COVID-19 may include those who were admitted for other reasons and have no COVID symptoms, Stanford University School of Medicine researchers explained. Throughout the pandemic, children have been admitted to hospitals for problems ranging from broken bones and appendicitis to cancer. When they arrive at the hospital and are tested for SARS-CoV-2 - the virus that causes COVID-19 - some turn out to be infected. But many who test positive never develop symptoms, according to the study. It's really important that we distinguish between children who are hospitalized with asymptomatic SARS-CoV-2 infections and those hospitalized for COVID-19 disease," said study co-author Dr. Alan Schroeder. "Our goal is to make sure we have accurate data on how sick children are getting," he said. "If we rely on hospitals' positive SARS-CoV-2 test results, we are inflating by about twofold the actual risk of hospitalization from the disease in kids." The researchers analyzed COVID-19 data from Lucile Packard Children's Hospital Stanford between May 10, 2020 and Feb. 10, 2021. They found that 117 children ... tested positive for the virus or were hospitalized for MIS-C, a potentially serious inflammatory syndrome. Close to half (53) were admitted to the hospital for reasons unrelated to the virus.