Assessing the long-term health impact of COVID-19: The importance of using self-reported health measures

It is estimated that at least one out of 10 people who contracted COVID-19 continue to experience health problems long after the clearance of the acute infection. These belong to the growing group of people who have post-acute sequelae of SARS CoV-2 infection or long COVID, a multifaceted condition involving multiple organ systems. Given the lack of clear definition and diagnosis, this marked increase in the number of people who have long COVID might not be fully reflected in data on population health in the years to come. In this editorial, we argue that the use of self-reported health measures is vital for fully assessing the long-term impact of the COVID-19 pandemic on health and health inequalities. After briefly introducing self-reported health measures, we discuss strengths and limitations of specific measures that capture direct self-reports of long COVID. We then outline how the impact of long COVID may also be reflected in response patterns to more general self-reported health measures and give suggestions on how these can be used to examine the long-term health impact of the COVID-19 pandemic.