INS and heart failure: In the multivariable logistic regression analysis, age (OR 1.04, 95%CI 1.00–1.07), having heart failure (OR 2.80, 95%CI 1.09–7.19), and receiving a second dose of insulin (OR 4.14, 95%CI 1.68–10.21) were found to be associated with an increased risk of hypoglycemia in patients with reduced kidney function and hyperkalemia (Table 4).