Global, Regional, and National Estimates of Undiagnosed Diabetes in Adults: Findings From the 2025 IDF Diabetes Atlas
Authors' conclusion
Substantial global variability in undiagnosed diabetes indicates opportunities to close existing care gaps, likely requiring context-specific solutions and investments.
Study context
- Population
- Adults aged 20–79 years, 215 countries/territories193 data sources · 109 countries
- Outcome
- Proportion and number of adults with diabetes who are undiagnosed
- Follow-up
- 2024
Methodological detailsIDF Diabetes Atlas, population-based studies and gray literature, 2003-2024, extrapolation for countries without data, benchmarked against WHO 80% diagnosis target
- IDF Diabetes Atlas
- Population-based studies and gray literature, 2003-2024
- Extrapolation for countries without data
- Benchmarked against WHO 80% diagnosis target
Pooled result
As reported in the abstract
Undiagnosed diabetes, global
Proportion of individuals with diabetes undiagnosed
42.8%
Adults with undiagnosed diabetes
251.7 million
95% UI 250.4–253.0 million
Further pooled results
Proportion undiagnosed by country and region
- Colombia (lowest country)
- 16.2%
- Burkina Faso (highest country)
- 90.4%
- North America and the Caribbean (lowest region)
- 29.1%
- Africa (highest region)
- 72.6%
Proportion undiagnosed by country income
- Low-income countries
- 58.7%
- High-income countries
- 28.9%
Adults with undiagnosed diabetes in middle-income countries
- Middle-income countries
- 206.0 million (95% UI 202.3-209.7 million); 81.8% of all
- China, India and Indonesia
- 127.1 million (95% UI 121.2-133.0 million); 50.5%
Countries attaining diagnosis levels ≥80%
- Share of all countries
- Less than 5%
Original publication
Global, Regional, and National Estimates of Undiagnosed Diabetes in Adults: Findings From the 2025 IDF Diabetes Atlas. Diabetes Care. Published 28 January 2026. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →