INS and cardiomyopathy: After adjusting for potential confounders, the risk factors of inhospital mortality were HAP (AHR 1.75; 95% CI 1.01–3.03) compared with CAP, higher age, cardiomyopathy, history of insulin, active smoking, qSOFA ≥ 2 and serum HCO3 ≤ 15 mEq/L.