PSMD1 and infection: The key socio-demographic characteristics of the study sample are shown in Table 1 for all 15,122 participants and for subgroups of participants, (i.e. for 146 participants with a self-reported positive SARS-CoV-2 test, 51 participants with a positive PCR test from study ONS (participants with an acute infection), 192 participants with a SARS-CoV-2-S1 IgG ELISA positive DBS test (seropositive participants), and 288 participants with past or current SARS-CoV-2 infections based on either one of the former infection categories).