The increased trend of Type 1 diabetes mellitus in children (0-14 years) in the Upper Silesia region of Poland

Incidence and prevalence of type 1 diabetes in children aged <15 yr in Castilla-Leon (Spain)

“…Many recent reviews described a specific increase in the youngest age‐group (0–4 yr) (12–15). However, our study found that the 5–9 yr age‐group showed the highest incidence.…”

“…In recent years, epidemiological studies throughout the world have discovered that the incidence of type 1 diabetes varies widely between and within countries (5–8) [from 0.1/100 000/yr in China and Venezuela to 36.8/100 000/yr in Sardinia and 36.5/100 000/yr in Finland (7, 8)]. Moreover, a worldwide increase in the incidence of type 1 diabetes has been observed (6, 9–11), especially in the group of children aged <5 yr (6, 9, 12–16). The aim of this study is to determine the epidemiology of type 1 diabetes in children younger than 15 yr in the Autonomous Community of Castilla‐Leon (Spain) during the period 2003–2004.…”

Changes in pediatric diabetes care throughout a 30-yr period at one institution for pediatric diabetology in Germany

“…The trend of an increasing incidence of diabetes that has been demonstrated by most other studies can be confirmed with our data (10–16). On the other hand, the main increase of newly diagnosed childhood diabetes mellitus occurred in the 1990s in our study population.…”

The epidemiology of Type 1 diabetes mellitus is not the same in young adults as in children

“…Our results indicate that caution should be exercised when extrapolating regional differences in incidence of childhood onset Type 1 diabetes to differences in lifelong risk for the disease. To decide whether the higher and increasing incidence rates of childhood Type 1 diabetes in certain countries are due to earlier disease presentation [1,8,9,10] or to an overall increased lifelong risk when compared to countries with lower incidence rates of childhood Type 1 diabetes, it would be necessary to compare incidence rates across countries over even larger age-ranges and longer observation periods.…”

“…The incidence of the disease in children up to 15 years of age is well documented by two multi-centre studies [4,5,6,7], with incidence varying from less than 1 per 100000 person years in Venezuela and China to more than 35 per 100000 person years in Finland and Sardinia. Furthermore, recent studies suggest a higher rate of increase in disease among children younger than 5 years than in children between 5 and 15 years of age [8,9,10,11], although other studies have not observed a differential rise in incidence [12,13,14].…”