Ogle GD, James S, Dabelea D, et al. - The 10th edition of the International Diabetes Federation Atlas estimated T1D incidence in 2021 for 215 countries/territories (“countries”).

• Researchers sourced and graded studies on T1D incidence for young people aged 0–19 years.

• As per estimates, diagnosis will be made in 108,300 children under 15 years in 2021; when the age range extends to under 20 years, the number rises to 149,500.

• In some countries in sub-Saharan Africa, North Africa/Middle East, and in Mexico, a particularly high ratio of incidence was observed in 15–19 years when compared with those aged 0–14 years.

• The incidence data were available for only 97 countries; extrapolation was required for some very populous nations.

• Overall, recent data were available for many countries but large gaps exist globally.