Association of select preventative services and hospitalization in people with diabetes.

PURPOSE: The purpose of this study was to assess the utilization rates and trends of preventative outpatient visits to providers in a population of people with diabetes, and evaluate which preventative services may offer protection against poor outcomes (i.e. all-cause hospitalization).
METHODS: The National Health and Nutrition Examination Survey (NHANES) was used to examine the relationship between select outpatient services and risk of all-cause hospitalization in people with diabetes. NHANES data from 2011 to 2016 were included. We assessed five outpatient services commonly recommended to prevent future complications in patients with diabetes: (1) routine examination from a physician (2) assessment of hemoglobin A1C (3) eye exam with pupil dilation (4) foot exam and (5) assessment from a diabetes specialist. Logistic regression models were performed to assess the independent association of outpatient services used in the past 1 year, and hospitalization within that same year.
RESULTS: The prevalence of diabetes within the NHANES population was 10.5% (n = 3054). Hospitalization was significantly more common among diabetics who were older, had lower income levels (i.e. under $20,000) and those who considered themselves in 'fair' or 'poor health'. After adjustment for important covariates, patients who received a preventative foot exam within the last year (i.e. 1-4 times per year) were 33% less likely to be hospitalized within that year (OR 0.67, 95%CI 0.46, 0.96). Those visiting a diabetes specialist were 44% less likely to be hospitalized that year (OR 0.56, 95%CI 0.39, 0.82) if the visit was preventative in nature (i.e. occurred more than one year before the hospitalized event). No other outpatient services displayed an independent association with hospitalization.
CONCLUSION: Outpatient Services were consistently being used annually by the diabetic population. Receiving a preventative foot exam and visiting a diabetes specialist were associated with protection against hospitalization, resulting in a 33% and 44% decreased risk, respectively. RESEARCH IN CONTEXT: Evidence before this study: Current guidelines focus on preventative care measures to avert diabetes complications. In a 2018 national database study of approximately one-third of the Italian population, guidelines for prevention were not consistently being met among the diabetes population, however, patients who regularly received all the recommended preventative measures experienced a 20% risk reduction in hospitalization. The study's preventative measures included periodic lab monitoring including glycated hemoglobin and lipid profiles and dilated eye exams. Added value of this study: In our study, we used a national database representing the United States' non-institutionalized population to identify the prevalence of prevention measures being utilized in adults with diabetes and further examine their relationship with all-cause hospitalization. Logistic regression analysis identified two preventative measures with inconsistent utilization, however, when these measures were used according to guidelines, they contributed to a risk reduction in all-cause hospitalization. Implications of all the available evidence: Current preventative guidelines can contribute to a risk reduction in hospitalization among adults with diabetes. National guidelines and quality improvement initiatives should be aimed at improving the utilization of foot exams as a preventative measure and referral to a diabetes specialist before complications incur.