Data on multisystem inflammatory syndrome for 274 children from Poland

In order to perceive the emergence of MIS-C in Poland (central Europe), we have launched a national surveillance of inflammatory disorders in children (MultiOrgan Inflammatory Syndromes COVID Related Study, MOIS-CoR). Anonymized patients’ data were retrospectively and prospectively extracted from health records and collected through an online questionnaire developed for that purpose. Here we report: demographic data, clinical characteristics, laboratory parameters, treatment, and outcome for patients with MIS-C (according to the World Health Organization criteria), obtained from 03.04.2020 till 02.20.2021. Ethical approval was obtained from the Bioethics Committee at Wroclaw Medical University (CWN UMW BW: 313/2020).