Type 2 diabetes with at least one oral or injectable glucose-lowering agent with HbA1c >7.0% (53mmol/L) or with >20 units/day basal insulin. Either had at least one co-existing cardiovascular or renal condition and were aged >50 years or had at least one of a list of pre-specified cardiovascular risk factors and were aged >60 years.NOT excluded if experienced SH prior to randomisation.Mean age 65 years. Here, INS is linked to type 2 diabetes mellitus.