Ellena Badrick is a Senior Research Fellow working on the Born in Bradford cohort study. She provides data analysis support and works on collaborative projects such as the Better4U consortium, UK Longitudinal Linkage Collaboration and Population Research UK. She has detailed knowledge of impact of COVID and data collected during the pandemic. She has a PhD in medicine from the University of Manchester (2017) and an MSc in Social Epidemiology from UCL (2006). She is an experienced epidemiologist with particular interest in the use of routinely collected data in research, ethics, risk prediction modelling and survival analysis.