TRACK-COVID Study Datasets# Last modified: 28 Jul 2025 1. Datasets# Table 1: Datasets and metrics in the UK LLC belonging to TRACKC19. Show Datasets Hide Datasets Dataset Dataset Name # Participants # Observations # Variables baseline Baseline Questionnaire 18134 18134 240 followUp Follow-up Questionnaire 16035 161073 103 basicInfo Basic Information 19635 19635 7