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202,592 items of data are available, covering 201,895 participants, encoded using Data-Coding 783. Defined-instances run from 0 to 1, labelled using Instancing 154.
Instance 0 : First COVID-19 antibody test taken, Feb 2021 to July 2021
201,895 participants, 201,895 items
Instance 1 : Repeat COVID-19 antibody test taken, March 2021 to July 2021
697 participants, 697 items
Each participant of the Coronavirus Self-test Antibody Study received a self-administered lateral flow test through the post that was either a Fortress Fast COVID-19 Test or an AbC-19TM Rapid Test. Fortress kits produced results that differentiated between IgG antibodies (long-term) and IgM antibodies (short-term). AbC-19TM kits provided only positive test results for IgG antibodies.