Colhoun said there have been few large-scale evaluations of life expectancy in type 1 diabetes, with the largest from the 1970s. To attain more current estimates, the researchers looked at data on 24,971 patients from Scotland with the disease — a cohort in which there were 1,079 deaths.

They then compared that information with data from the general population of Scotland with 12,055,160 people and 162,066 deaths.

Overall, they found significant gaps in life expectancy between type 1 diabetics and the general population — a difference of 11.1 years for men and 14.3 years for women between the ages of 20 and 25.

via Shorter Life Expectancy Persists in Type 1 Diabetes.