Type 2 diabetes in Scottish military veterans: a retrospective cohort study.

Older veterans in Scotland have an increased risk of type 2 diabetes in comparison with non-veterans, but there is no difference in respect of younger veterans, and the pattern of risk shows no evidence that it is changing. There is a positive association between type 2 diabetes and PTSD, especially in the presence of comorbid mood disorder, an important finding which should be noted by care providers.