SUN-625 The Impact of Age on Outcomes of Hyperosmolar Hyperglycemia Among Adult Patients with Diabetes. from the National Inpatient Sample

Abstract

Objective: There is paucity of literature on the impact of age on outcomes hyperosmolar hyperglycemic state (HHS) among adult patients with diabetes. The aim of the study was to evaluate the effect of age on the outcome of patients admitted for the management of HHS. Methodology: The National Inpatient Sample (NIS) was queried for all patients who were admitted with a diagnosis of HHS during the years 2005-2014. The primary outcomes of the study were all-cause mortality, acute myocardial infarction (MI), and acute stroke. The secondary outcomes were acute kidney injury (AKI), rhabdomyolysis, acute respiratory failure (ARF), need for mechanical ventilation (MV) length of stay (LOS), and total cost of stay. Results: Overall, 188,725 patients were admitted for HHS. Mean age was 55.9, standard error of the mean (SEM): 0.1. Majority were of middle age. Females were (43.9%), Caucasians were 37.4% while African Americans were 35.2%. Total mortality was 1.1%, MI was 1.3% and stroke was 1.1%. Most common secondary outcome was AKI seen in 31.3% followed by ARF seen in 2.9% of total. The mean cost was 7887 $ (SEM: 84.6) and mean LOS was 4.1 days (SEM: 0.03). Young age was defined as age ≤ 35 years, middle age was > 35 and ≤ 65 years, old age was > 65 years. Mortality was 0.3 %, 0.6%, 2.5% in young, middle and older aged groups respectively. Similarly, higher age correlated with increased risk for MI, stroke and all secondary outcomes. On multivariable analysis, age was an independent predictor for all adverse outcomes. Compared to young patients, middle and older age groups had higher odds for mortality with adjusted odds ratio (aOR) 2.23 [95%CI:1.10-4.52], p=0.03 and aOR 7.35 [95%CI: 3.27-16.53], p<0.001 respectively, higher risk for stroke with aOR 9.32 [95%CI: 2.92-29.7], p<0.001 and aOR 17.46 [95%CI:5.23-58.3], p<0.001 and higher risk for MI aOR 5.18 [95%CI:2.15-12.51], p<0.00 and aOR 5.80 [95%CI:2.27-14.80], p<0.00 for middle and older age groups respectively. In addition, compared to the younge age group, the risk for rhabdomyolysis, AKI, ARF, MV, total cost and LOS was significantly higher among middle and older age groups respectively. Conclusion: Age is an important determinant for adverse outcomes among patients with hyperosmolar hyperglycemic sate.