Over 800m adults have diabetes globally, with many 'not receiving treatment' New study suggests global diabetes rate doubled in last 30 years, largely due to rising cases in low-, middle-income countries A new study found that over 800 million adults have diabetes worldwide — almost twice as many as previous estimates have suggested — and more than half of those aged over 30 who have the condition are not receiving treatment. In 2022, there were around 828 million people aged 18 years and older with type 1 and type 2 diabetes worldwide, the study published in The Lancet journal found. Among adults aged 30 years and older, 445 million, or 59% of them, were not receiving treatment, the authors said.

Previously, the World Health Organisation (WHO) has estimated that around 422 million people have diabetes, a chronic metabolic disease involving blood sugar levels, which can damage the heart, blood vessels, nerves and other organs if untreated. According to the study, the global diabetes rate has doubled since 1990 from around 7% to 14%, driven largely by rising cases in low- and middle-income countries. Although there are far more cases, treatment rates in those regions have barely increased, the authors said, while things have improved in some higher-income countries leading to a widening treatment gap.

For instance, in parts of sub-Saharan Africa, only 5-10% of those estimated to have diabetes were getting treatment, said Jean Claude Mbanya, professor at the University of Y.