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Greater Hospitalization rates for cardiovascular disease among individuals with diabetes in the State of South Carolina, 2009 – 2012
Methods: A retrospective study was conducted using hospital discharge data for inpatient and ED visits from the state of South Carolina between January 2009 and December 2012. Patients who were hospitalized at least once for CVD within the time period were included in the study if they were 18 years or older. Those with an ICD-9-CM code of 250 as one of their diagnoses on their first visit were considered to have diabetes. Those patients who were never diagnosed with diabetes at any of their visits over the follow-up period were categorized as not having diabetes. Patients who were free of diabetes on their first visit but later developed diabetes were excluded. Comparison of hospitalization rates for CVD events was made between patients with diabetes and those without diabetes for both inpatient and ED visits.
Results: A total of 384,693 patients between the ages of 18 to 110 years were admitted to the hospital 765,246 times for a CVD event during the four year period with 29% (112,112) of those patients having diabetes. Also, there 288,714 patients admitted 537,895 times to the ED for a CVD event with 25.4% (73,352) who were diabetic. Of the total number of admissions, patients with diabetes accounted for 35.7% of inpatient visits and 32.0% of ED visits. Patients with diabetes had a significantly higher rate of hospital admissions for CVD for both inpatient and ED visits than patients without diabetes after adjusting for age, race, and sex (Inpatient visits: IRR = 1.203 [95% CI, 1.194 – 1.213]; ED visits: IRR= 1.171 [95% CI, 1.160 – 1.182).
Conclusion: Patients with diabetes had higher rates of CVD hospitalizations for both inpatient and ED visits in comparison to patients without diabetes.
Learning Areas:
EpidemiologyLearning Objectives:
Describe the impact that diabetes has on hospitalization rates for cardiovascular disease in inpatient and emergency departments across the state of South Carolina.
Keyword(s): Diabetes, Hospitals
Qualified on the content I am responsible for because: I have finished my coursework for my PhD in Exercise Science as well as an MSPH in Epidemiology at the University of South Carolina. As part of my coursework, I have taken several epidemiology and statistical courses that have taught me how to work with large data sets. A primary interest of mine is diabetes and how those who seek care in an ED setting are more likely to lack access to primary care providers.
Any relevant financial relationships? No
I agree to comply with the American Public Health Association Conflict of Interest and Commercial Support Guidelines, and to disclose to the participants any off-label or experimental uses of a commercial product or service discussed in my presentation.