TwinsUK - The UK Adult Twin Registry: COVID-19 personal experience questionnaire wave 4

All participants with a valid email address were sent a questionnaire if they were current members of the TwinsUK registry, live in the UK completed cope 1, 2 or 3 or signed up for a postal blood collection/antibody testing study . The questionnaire aims to measure social, economic and health factors, prior to and during the COVID-19 pandemic. Broadly, these measures will be used to investigate predictors and outcomes of the COVID-19 pandemic (e.g. COVID-19 infection), including outcomes such as continuation and recovery of health, wellbeing and functionality.