A new international study has revealed a dramatic surge in childhood and adolescent diabetes, particularly type 2, while improvements in care have helped drive down global mortality rates.

The research, published in Frontiers in Endocrinology, analyzed data from 204 countries and regions between 1990 and 2021. It found that while diabetes cases among children and adolescents nearly doubled during this period, the number of deaths linked to the disease decreased.

Rising Burden of Diabetes

Diabetes is a chronic condition caused by insulin deficiency or resistance. In 2019, it affected an estimated 460 million people worldwide and ranked as the eighth leading cause of death and disability. Projections suggest this figure could rise to 783 million by 2045, highlighting the immense pressure the disease places on global healthcare systems.

While diabetes is traditionally classified into type 1 (T1D) and type 2 (T2D), researchers note that cases of T2D are now increasing at a faster rate among children and adolescents. Despite preventive efforts, early-onset diabetes is becoming more common, underscoring the need for closer monitoring and more effective interventions.

Study Findings

The study used the Global Burden of Disease (GBD) 2021 database to examine incidence, mortality, and Disability-Adjusted Life Years (DALYs) linked to diabetes in young people under 20. Key findings include:

• Incidence Surge: Global diabetes incidence rose by 94%—from 25.77 per 100,000 in 1990 to 49.99 per 100,000 in 2021. T2D incidence surpassed T1D, though T1D still accounts for more deaths.
• Regional Patterns: The highest incidence rates were seen in Oceania, while East Asia, North Africa, and the Middle East recorded steep increases. India and China reported the highest number of cases, with Pakistan also showing significant growth.
• Mortality Trends: The diabetes-related death rate fell from 0.39 per 100,000 in 1990 to 0.31 per 100,000 in 2021. Mortality from T1D decreased significantly, while T2D-related deaths rose slightly. High-income regions reported the lowest death rates, while low-income areas carried the heaviest burden.
• Disability Burden: Overall DALYs declined slightly, from 39.45 per 100,000 in 1990 to 37.83 per 100,000 in 2021. However, DALYs linked to T2D increased, while those linked to T1D fell. The highest burden was recorded in Oceania, with India showing a growing trend.

Risk Factors and Projections

Among children and adolescents, the main driver of diabetes-related mortality and disability was elevated fasting blood glucose. Other contributing factors include dietary patterns, environmental exposures, and temperature extremes.

Using predictive models, researchers warn that the global incidence of childhood and adolescent diabetes is likely to keep rising over the next 15 years. At the same time, mortality rates are expected to continue declining—reflecting advances in early detection, treatment, and disease management.

Key Takeaway

The findings paint a mixed picture: while children and adolescents with diabetes today have a better chance of survival than in previous decades, the rapid rise in new cases signals an urgent public health challenge. Addressing modifiable risk factors, improving prevention strategies, and ensuring equitable access to treatment will be critical in tackling this growing epidemic.