The number of people using insulin to treat diabetes trebled between 1991 and 2010, researchers from the Universities of Bristol and Cardiff have found.
The study, published in the Journal of Diabetes, Obesity and Metabolism, looked at the number of patients receiving prescriptions for insulin, using data from the Clinical Practice Research Datalink.
It found UK insulin users had increased from 136,800 in 1991 to 421,300 in 2010, while people with diabetes rose from 1.4 to 2.8 million.
During the same period, there was an increase in the prevalence of insulin users with a diagnosis of type 2 diabetes from 0.67 to 4.34 per 1000 population. The study's authors said the increase might be due to more people with type 2 diabetes using insulin to manage the condition.
The study can be found at http://onlinelibrary.wiley.com/journal/10.1111