The incidence rate of hospitalized lysosomal storage diseases in Poland in 2013-2015 based on data from the National Health Fund

Introduction
The reported data address the incidence of lysosomal storage diseases, obtained from the public health service databases in Poland. Data are given by subtypes from the National Health Fund between 2013 and 2015.

Material and methods
Patients with lysosomal storage diseases were identified in the National Health Fund database (2013–2015). In order to ensure that the reported incidence data included only new patients. The geographic area of residence in 2013–2015 was divided into 6 parts.

Results
The incidence rate of lysosomal storage diseases in Poland is about 1.84/1 million/person/years. Other sphingolipidosis was the largest disease category, with 127 patients (incidence 1.1 patients/million habitants), follow by GM2 gangliosidosis – 29 patients (incidence 0.25 patients/million habitants). Men had a somewhat higher incidence than women (respectively IR = 2.53, IR = 1.84). The number of deaths with lysosomal storage disease patients hospitalized between the years 2013 through 2015 is higher in young people (0–9 years old).

Conclusions
The incidence rate of lysosomal storage diseases in Poland is about 1.84 per million person-years. Other sphingolipidosis was the largest disease category, followed by GM2 gangliosidosis. The hospitalization rate of lysosomal storage diseases was higher in men.