Fig 2. Flow diagram Corona Behavioral Unit cohort study, April 2020 –September 2022.

¹ Other reasons for uncompleted questionnaires are: open link had been used more than once, email address was not correct, survey was closed because participant’s age was below the minimum, participant did not give permission to use their data. ² Participant id number, age and sex from the baseline questionnaires were used to match participants on their follow-up questionnaires.