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Diabetes Metab Res Rev. 2018 Feb;34(2). doi: 10.1002/dmrr.2962. Epub 2017 Dec 28.

Epidemiology of type 1 diabetes in Polish children: A multicentre cohort study.

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Department of Endocrinology and Diabetology, Children's Memorial Health Institute, Warsaw, Poland.
The Faculty of Medicine and Health Sciences, Jan Kochanowski University, Kielce, Poland.
Department of Paediatrics, Medical University of Warsaw, Warsaw, Poland.
II Department of Paediatrics, Paediatric Endocrinology and Diabetes, Medical Faculty, University of Rzeszów, Rzeszów, Poland.
Department of Paediatric Endocrinology and Diabetology, Medical University of Lublin, Lublin, Poland.
Department of Clinical Paediatrics, Faculty of Medical Sciences, Provincial Specialist Children's Hospital, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland.
Endocrinology and Diabetology Ward, General District Hospital, Kielce, Poland.
Department of Paediatrics, Endocrinology and Diabetology with a Cardiology Division, Medical University of Białystok, Białystok, Poland.
Department of Paediatric Endocrinology, Medical University of Warsaw, Warsaw, Poland.



The incidence of childhood type 1 diabetes (T1D) varies greatly between populations, and the estimates and/or predictions of the rates would aid in adequate planning of health care resources. The study's aim was to assess the incidence of T1D in the paediatric population of eastern and central Poland.


In this cohort study covering the period from January 2010 to December 2014, data were collected for children and adolescents below 18 years of age with newly diagnosed T1D living in eastern and central Poland. A total of 2174 children were included in the analysis. The population estimates were from the Central Statistical Office of Poland.


Overall, the annual incidence of T1D increased from 12.84/100,000 in 2010 to 18.46/100,000 in 2014 with the incidence rate (IR) ratio of 1.5 (an increase in the IR by 12.7% per year over 5 years). The lowest increase in the IR by 7.1% per year was seen in 15 to 17-year-olds. In the urban population (age 0-17 years), the overall incidence rate was significantly higher than in subjects from rural communities (P < .02). The incidence of T1D in rural areas was significantly higher (p = .004) in voivodeships of higher population density. Such dependence was not observed in urban areas.


The incidence of T1D in children living in eastern and central Poland increased 1.5-fold over the 5-year observation period with the highest rise in 10 to 14-year-olds and significantly higher rates in urban children compared with their peers living in rural areas.


childhood; diabetes mellitus; epidemiology; incidence; prevalence; type 1 diabetes

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