Fig. 3: Overview of study design. | npj Vaccines

Fig. 3: Overview of study design.

From: A register and questionnaire study of long-term general health symptoms following SARS-CoV-2 vaccination in Denmark

Fig. 3

a: Overview of the study design using EFTER-COVID survey data. SF-36: 36-Item Short Form Survey Instrument; COBRA: Cognitive Complaints in Bipolar Disorder Rating Assessment; FAS: Fatigue Assessment Scale; DSQ: DePaul Symptom Questionnaire. b: Key contextual background dates inherent to the study design. c: Overview of variables pulled from register and survey data. d: Definition of symptom outcomes. *If vaccinated. Note that it is also possible for the vaccination date to be prior to the test date.

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