Impact of concurrent macrovascular co-morbidities on healthcare utilization in patients with type 2 diabetes in Europe: a matched study

Incidence and costs of cardiovascular events in Spanish patients with type 2 diabetes mellitus: a comparison with general population, 2015

INTRODUCTION

Cardiovascular (CV) disease affects a high percentage of patients with type 2 diabetes mellitus (T2DM), especially in the hospital setting, impacting on mortality, complications, quality of life and use of health resources. The aim of this study was to estimate the incidence, mean length of hospital stay (LOHS) and costs attributable to hospital admissions due to CV events in patients with T2DM versus patients without diabetes mellitus (non-DM) in Spain.

RESEARCH DESIGN AND METHODS

Retrospective observational study based on the Spanish National Hospital Discharge Database for 2015. Hospital admissions for patients aged ≥35 years with a diagnosis of CV death, non-fatal acute myocardial infarction (AMI), non-fatal stroke, unstable angina, heart failure and revascularization were evaluated. The International Classification of Diseases, Ninth Revision (250.x0 or 250.x2) coding was used to classify records of patients with T2DM. For each CV complication, the hospital discharges of the two groups, T2DM and non-DM, were precisely matched and the number of hospital discharges, patients, LOHS and mean cost were quantified. Additional analyses assessed the robustness of the results.

RESULTS

Of the 276 925 hospital discharges analyzed, 34.71% corresponded to patients with T2DM. A higher incidence was observed in all the CV complications studied in the T2DM population, with a relative risk exceeding 2 in all cases. The mean LOHS (days) was longer in the T2DM versus the non-DM group for: non-fatal AMI (7.63 vs 7.02, p<0.001), unstable angina (5.11 vs 4.78, p=0.009) and revascularization (7.96 vs 7.57, p<0.001). The mean cost per hospital discharge was higher in the T2DM versus the non-DM group for non-fatal AMI (€6891 vs €6876, p=0.029) and unstable angina (€3386 vs €3304, p<0.001).

CONCLUSIONS

Patients with T2DM had a higher incidence and number of hospital admissions per patient due to CV events versus the non-DM population. This generates a significant clinical and economic burden given the longer admission stay and higher costs associated with some of these complications.

Prevalence of cardiovascular disease in type 2 diabetes: a systematic literature review of scientific evidence from across the world in 2007-2017

BACKGROUND

Cardiovascular disease (CVD) is a common comorbidity in type 2 diabetes (T2DM). CVD's prevalence has been growing over time.

PURPOSE

To estimate the current prevalence of CVD among adults with T2DM by reviewing literature published within the last 10 years (2007-March 2017).

METHODS

We searched Medline, Embase, and proceedings of major scientific meetings for original research documenting the prevalence of CVD in T2DM. CVD included stroke, myocardial infarction, angina pectoris, heart failure, ischemic heart disease, cardiovascular disease, coronary heart disease, atherosclerosis, and cardiovascular death. No restrictions were placed on country of origin or publication language. Two reviewers independently searched for articles and extracted data, adjudicating results through consensus. Data were summarized descriptively. Risk of bias was examined by applying the STROBE checklist.

RESULTS

We analyzed data from 57 articles with 4,549,481 persons having T2DM. Europe produced the most articles (46%), followed by the Western Pacific/China (21%), and North America (13%). Overall in 4,549,481 persons with T2DM, 52.0% were male, 47.0% were obese, aged 63.6 ± 6.9 years old, with T2DM duration of 10.4 ± 3.7 years. CVD affected 32.2% overall (53 studies, N = 4,289,140); 29.1% had atherosclerosis (4 studies, N = 1153), 21.2% had coronary heart disease (42 articles, N = 3,833,200), 14.9% heart failure (14 studies, N = 601,154), 14.6% angina (4 studies, N = 354,743), 10.0% myocardial infarction (13 studies, N = 3,518,833) and 7.6% stroke (39 studies, N = 3,901,505). CVD was the cause of death in 9.9% of T2DM patients (representing 50.3% of all deaths). Risk of bias was low; 80 ± 12% of STROBE checklist items were adequately addressed.

CONCLUSIONS

Globally, overall CVD affects approximately 32.2% of all persons with T2DM. CVD is a major cause of mortality among people with T2DM, accounting for approximately half of all deaths over the study period. Coronary artery disease and stroke were the major contributors.

Change in HbA1c associated with treatment intensification among patients with type 2 diabetes and poor glycemic control

OBJECTIVE

We conducted a retrospective cohort study to investigate the HbA1c change associated with treatment intensification in a real-world population of patients with type 2 diabetes (T2D).

METHODS

Using a large US insurance claims database, patients aged ≥18 years with a T2D diagnosis and HbA1c ≥8.0% (64 mmol/mol) after ≥3 months of oral pharmacotherapy with metformin (± other oral antidiabetes agents) were identified (index date). Continuous enrollment was required for ≥12 months before (baseline) and after the index date with no baseline use of injectable antidiabetes drugs. We defined treatment intensification as prescriptions for injectable or additional oral antidiabetes drugs. Time to intensification was classified as timely (within 6 months) or not (≥6 months or not intensified). Linear regression models with propensity score 1:1 matching were performed to assess the effect of timely intensification on HbA1c.

RESULTS

Of the 11,525 patients meeting the inclusion criteria, only 37% had treatment intensified within 6 months. Mean age at index date was 57 years, 40% of the sample was female. The mean baseline A1C was 9.4% and 9.0%, while post-index A1C was 7.9% and 8.2% for timely intensified patients versus not, respectively. Patients with timely intensification had significantly greater HbA1c reduction compared with others (-0.33%, 95% CI: -0.41% to -0.25%) within 1 year of follow up.

CONCLUSIONS

In this analysis of patients with T2D and treatment failure in a real-world setting, earlier treatment intensification was associated with better glycemic control as indicated by lower HbA1c values.

Health outcomes in diabetics measured with Minnesota Community Measurement quality metrics

OBJECTIVE

Our objective was to understand the relationship between optimal diabetes control, as defined by Minnesota Community Measurement (MCM), and adverse health outcomes including emergency department (ED) visits, hospitalizations, 30-day rehospitalization, intensive care unit (ICU) stay, and mortality.

PATIENTS AND METHODS

In 2009, we conducted a retrospective cohort study of empaneled Employee and Community Health patients with diabetes mellitus. We followed patients from 1 September 2009 until 30 June 2011 for hospitalization and until 5 January 2014 for mortality. Optimal control of diabetes mellitus was defined as achieving the following three measures: low-density lipoprotein (LDL) cholesterol <100 mg/mL, blood pressure <140/90 mmHg, and hemoglobin A1c <8%. Using the electronic medical record, we assessed hospitalizations, ED visits, ICU stays, 30-day rehospitalizations, and mortality. The chi-square or Wilcoxon rank-sum tests were used to compare those with and without optimal control. We used Cox proportional hazard models to estimate the associations between optimal diabetes mellitus status and each outcome.

RESULTS

We identified 5,731 empaneled patients with diabetes mellitus; 2,842 (49.6%) were in the optimal control category. After adjustment, we observed that non-optimally controlled patients had higher risks for hospitalization (hazard ratio [HR] 1.11; 95% confidence interval [CI] 1.00-1.23), ED visits (HR 1.15; 95% CI 1.06-1.25), and mortality (HR 1.29; 95% CI 1.09-1.53) than diabetic patients with optimal control. No differences were observed in ICU stay or 30-day rehospitalization.

CONCLUSION

Diabetic patients without optimal control had higher risks of adverse health outcomes than those with optimal control. Patients with optimal control defined by the MCM were associated with decreased morbidity and mortality.

[Consensus document on the management after hospital discharge of patient with hyperglycaemia]

The present document intends to adapt the general recommendations set up in a consensus to elaborate the hospital discharge report in medical specialties to the specific needs of the hospitalized diabetic population. Diabetes is an illness with a very high health cost, being the global risk of death in people with diabetes almost double than in non-diabetes people, justifying the fact that diabetes constitutes one of the most frequent diagnoses in hospitalized patients and the growing interest upon hyperglycaemia management during hospitalization and at discharge. To set up an adequate treatment plan at discharge suitable for each patient, the most important elements to take into account are the etiology and prior hyperglycaemia treatment, the patient's clinical situation and the degree of glycaemia control. Due to instability of glycaemia control, it is also needed to anticipate the educational needs for each patient, as well as to set up the monitoring schedule and follow-up at discharge, and an adequate treatment plan at discharge.