Analysis of 622 paediatric hospitalisations due to arterial ischaemic stroke in Poland - National Health Fund registry-based study from 2011 to 2020.

Introduction: The present study aimed to evaluate the prevalence of arterial ischaemic stroke (AIS) in Polish children, as well as to analyse the parameters related to AIS hospitalisation, including age, gender, region, month and season of the year at admission, duration, and costs, based on data from National Health Fund (NHF) registry in 2011-2020.

Material And Methods: Data from the NHF were analysed statistically. The disease was identified according to the codes I63 and I64 of the International Classification of Diseases, 10 Revision (ICD-10), and patients included only individuals up to 18 years of age.

Changes in interregional migration of patients hospitalized in Poland - 2013-2017.

Objectives: The aim of the study is to determine the scale of interregional migrating patients' hospitalizations in Poland in 2013-2017, as well as their demographic and medical factors, total costs and time changes.

Material And Methods: Data from the NHF (National Health Fund) regarding hospitalizations in a given province of patients registered in another province in Poland in 2013-2017 were statistically analyzed. Times series analyses as well as coefficients of correlation, determination and variation were used.