Abstract
AimsType 1 diabetes has been associated with a significant reduction in life expectancy. Major advances in treatment of type 1 diabetes have been associated with improved survival. However, life expectancy for type 1 diabetes under contemporary care is not known. MethodsHealth care registers were used to obtain data on all people with type 1 diabetes in Finland in 1964–2017 and their mortality in 1972–2017. Survival analyses were used to study long-term trends in survival and abridged period life table methods to calculate life expectancy estimates. Causes of death were examined to consider development. ResultsStudy data included 42,936 persons with type 1 diabetes and 6,771 deaths. Kaplan-Meier curves showed improved survival during the study period. In 2017, the remaining life expectancy at the age of 20 for a person diagnosed for type 1 diabetes was estimated to be 51.64 (95% CI: 51.51, 51.78) years which was 9.88 (9.74, 10.01) years lower than for the general Finnish population. ConclusionsWe found improved survival among persons with type 1 diabetes during the last decades. However, their life expectancy remained significantly below that of the general Finnish population. Our results call for further innovations and improvements in diabetes care.
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