Thirty people were excluded from the analysis population (N = 3031) due to receiving insulin for >12 months before study entry (n = 23), having type 1 diabetes (n = 3) or diabetes due to pancreatitis (n = 2) or pregnancy (n = 1) and having no time between starting insulin and study entry (n = 1). Here, INS is linked to type 1 diabetes mellitus.