Type 1 diabetes Geographical variation

[RoyParker]

The incidence of type 1 diabetes in children varies nearly 400-fold between countries (Figure 1) with age-adjusted incidence rates ranging from 0.1 per 100,000 per year in parts of Venezuela and China to 37.8 in Sardinia and 40.9 per 100,000/year in Finland.1 The high rate observed in Sardinia is notably discordant with the incidence in Italy as a whole. Incidence also varies within several other countries including China, where there is a 12-fold variation by region (0.13–1.61/100,000). In general, countries in Europe and North America have either high or intermediate incidences. The incidence in Africa is generally intermediate and that in Asia is low, with the notable exception of Kuwait.

(Source: NCBI)