Increasing hospital admissions for systemic allergic disorders in England: analysis of national admissions data

decade of age) and lower LVEF (0.94 (0.89 to 0.99) for each 10% increase) were independent risk factors for azotaemia.For severe hyperkalaemia (serum potassium > 6.0 mmol/l) we added to the model baseline serum creatinine concentration and whether the patient was taking potassium supplementation.In this analysis the NYHAFC (3.36 (1.17 to 9.69) for each class) and lower LVEF (0.37 (0.15 to 0.95) for each 10% increase) were predictive factors.