INS and type 1 diabetes mellitus: The following drugs were significantly associated with the clinical manifestation of type 1 diabetes (in order of strength of association): “systemic hormonal preparations, excluding sex hormones and insulins (H)” (OR 1.7, 95% CI 1.1–2.6), “blood and blood forming organs (B)” (OR 1.6, 95% CI 1.1–2.6), “alimentary tract and metabolism (A)” (OR 1.3, 95% CI 1.1–1.6), and “anti-infectives for systemic use (J)” (OR 1.2, 95% CI 1.01–1.4) (Table 4).