Percent change in the regression coefficient for depression in the association with time to insulin initiation, after adjustment for potential confounders.

aN varies due to exclusion of cases censored before the earliest event in a stratum (n = 2) and missing values for the candidate confounder at hand; b Myocardial infarction, bypass/angioplasty, stroke and/or arterial disease; c Retinopathy and/or micro-/macroalbuminuria; d Kidney disease, asthma/chronic obstructive pulmonary disease, cancer, arthrosis and/or rheumatoid arthritis.