Symptoms of Mental Health Conditions and Their Predictors Among U.S. Adults During the First Year of the COVID-19 Pandemic.

This study examined the impact of the COVID-19 pandemic on mental health among U.S. adults during its first year, using monthly surveys from March to November 2020.

Physical measures and biomarker collection in health surveys: Propensity to participate.

Population-based surveys have long been a key tool for health researchers, policy makers and program managers. The addition of bio-measures, including physical measures and specimen collection, to self-reported health and health behaviors can increase the value of the research for health sciences. At the same time, these bio-measures are likely to increase the perceived burden and intrusiveness to the respondent.