Fig 1. Study flowchart for the cohort recruited from HUNT2 (1995–1997).

^a Self-reported diabetes, verified as Type 2 diabetes and have answered not to use insulin (n = 783); self-reported diabetes, who have answered not to use insulin (n = 215); self-reported diabetes, not answering treatment question but verified as not using insulin in the Norwegian Prescription Data base (n = 126). ^b Completed fewer than five questions on the HADS anxiety (HADS-A) and/or depression (HADS-D) subscales.