Diabetes-related cardiovascular and economic burden in patients hospitalized for heart failure in the US: a recent tempo
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Diabetes-related cardiovascular and economic burden in patients hospitalized for heart failure in the US: a recent temporal trend analysis from the National Inpatient Sample Menatalla Mekhaimar 1 & Soha Dargham 1 & Mohamed El-Shazly 1 & Jassim Al Suwaidi 1 & Hani Jneid 2 & Charbel Abi Khalil 1,3,4
# The Author(s) 2020
Abstract We aimed to study the cardiovascular and economic burden of diabetes mellitus (DM) in patients hospitalized for heart failure (HF) in the US and to assess the recent temporal trend. Data from the National Inpatient Sample were analyzed between 2005 and 2014. The prevalence of DM increased from 40.4 to 46.5% in patients hospitalized for HF. In patients with HF and DM, mean (SD) age slightly decreased from 71 (13) to 70 (13) years, in which 47.5% were males in 2005 as compared with 52% in 2014 (p trend < 0.001 for both). Surprisingly, the presence of DM was associated with lower in-hospital mortality risk, even after adjustment for confounders (adjusted OR = 0.844 (95% CI [0.828–0.860]). Crude mortality gradually decreased from 2.7% in 2005 to 2.4% in 2014 but was still lower than that of non-diabetes patients’ mortality on a yearly comparison basis. Hospitalization for HF also decreased from 211 to 188/100,000 hospitalizations. However, median (IQR) LoS slightly increased from 4 (2–6) to 4 (3–7) days, so did total charges/stay that jumped from 15,704 to 26,858 USD (adjusted for inflation, p trend < 0.001 for both). In total, the prevalence of DM is gradually increasing in HF. However, the temporal trend shows that hospitalization and in-hospital mortality are on a descending slope at a cost of an increasing yearly expenditure and length of stay, even to a larger extent than in patient without DM. Keywords Heart failure . Diabetes mellitus . Mortality . Length of stay . Cardiovascular disease
Abbreviations CAD coronary artery disease HF heart failure HFpEF heart failure with preserved ejection fraction HFrEF heart failure with reduced ejection fraction ICD International Classification of Diseases LOS length of stay Electronic supplementary material The online version of this article (https://doi.org/10.1007/s10741-020-10012-6) contains supplementary material, which is available to authorized users. * Charbel Abi Khalil [email protected] 1
Research Department, Weill Cornell Medicine—Qatar, Doha, Qatar
2
The Michael E. DeBakey VA Medical Centre, Baylor College of Medicine, Houston, TX, USA
3
Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY, USA
4
Department of Health Policy, London School of Economics, London, UK
LVEF NIS
left ventricular ejection fraction National Inpatient Sample
Background Heart failure (HF) is a rising public health challenge. There are approximately 26 million worldwide suffering from HF, including more than 6.5 million people in the US [1]. HF prevalence increases gradually with age and represents a common cause of hospitalization and re-admissions, especially in the elderly [2]. It is therefore one of the leading cau
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