Fig. 1: The dHS Covid study design. | Communications Medicine

Fig. 1: The dHS Covid study design.

From: Physical and cognitive impact following SARS-CoV-2 infection in a large population-based case-control study

Fig. 1

Cases and contemporary controls participated in the dHS Covid Study between September 2020 and November 2021. Historical dHS controls participated in the study between June 2016 and March 2020. Through the iStopMM study we obtained additional GAD-7, PHQ-9, PSS, SWLS, and 36-SF scores obtained both before and during the pandemic. To establish an association with prior SARS-CoV-2 infection, we required association when comparing cases with all available controls, accounting for multiple testing, and consistent results when comparing cases with contemporary controls or when comparing the subset of cases to the subset of controls with longitudinal measures.

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