The number of global type 1 diabetes cases is rising quickly, especially in lower-income settings, due to increasing diagnosed incidence, falling mortality, ageing populations, and overall population growth. Based on the 11th edition of the IDF Atlas, this article presents 2025 estimates for type 1 diabetes incidence, prevalence and mortality across 202 countries with projections extending to 2040.
There are an estimated 9.5 million people living with type 1 diabetes globally – an increase of 13% since 2021. A significant share of this burden falls on young people under 20 years of age, who are overrepresented in low- and middle-income countries.
Globally, in 2025 there will be an estimated 513,000 newly diagnosed cases of type 1 diabetes. Of these, 43.3% are expected to occur in people under 20 years of age.
The 10 countries with the highest estimated number of people living with type 1 diabetes are, in order, the U.S., India, China, Brazil, the United Kingdom, Germany, Russia, Canada, Saudia Arabia and Turkey.
Looking ahead, the global type 1 diabetes population is projected to reach 14.7 million by 2040. National and global efforts to monitor type 1 diabetes incidence, prevalence and mortality are essential for understanding the current and future burden of type 1 diabetes. This, in turn, is fundamental to informing current and future healthcare service delivery for people with type 1 diabetes and optimising care for all those affected.
Key Takeaways:
Understanding the health and socioeconomic burden of type 1 diabetes is crucial for appropriate allocation of limited health resources, appropriate training of health professionals, and effective national and global advocacy.
With the global type 1 diabetes population expected to reach 14.7 million by 2040 — and with youth making up a significant and growing proportion of new diagnoses — the need for early diagnosis, reliable monitoring, and accessible point-of-care solutions is of rising importance. HemoCue’s point-of-care systems are well positioned to address these rising demands and strengthen diabetes care pathways.
References:
Ogle GD, Wang F, Haynes A et al.
Global type 1 diabetes prevalence, incidence, and mortality estimates 2025: Results from the International diabetes Federation Atlas, 11th Edition, and the T1D Index Version 3.0.
Diabetes Res Clin Pract. 2025 Jul;225:112277.
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