Coping with the mental health impact of COVID-19: A study protocol for a multinational longitudinal study on coping and resilience during the COVID-19 pandemic.

To the best of our knowledge, this is the first study to multi-nationally and longitudinally determine mental health outcomes and resilience trajectories in Europe during the COVID-19 pandemic. The results of this study will help to determine mental health conditions during the COVID-19 pandemic across Europe. The findings may benefit pandemic preparedness planning and future evidence-based mental health policies.