Thirteen out of 27 variables were selected for the administrative claims Cox model, namely: age, platelet aggregation inhibitors, anticoagulants, calcium channel blockers, insulin, female sex, chronic pulmonary disease, treated dyslipidaemia, sulfonylureas, ischemic heart disease, stroke or TIA, peripheral arterial disease, and systemic inflammatory disease. Here, INS is linked to transient ischemic attack.