Weight change is associated with increased all-cause mortality and non-cardiac mortality among patients with type 2 diab
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ORIGINAL ARTICLE
Weight change is associated with increased all-cause mortality and non-cardiac mortality among patients with type 2 diabetes mellitus Zhenhua Xing1 Junyu Pei1 Jiabing Huang1 Xiaofan Peng1 Pengfei Chen1 Xinqun Hu1 Shan Gao ●
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Received: 24 October 2018 / Accepted: 5 March 2019 © Springer Science+Business Media, LLC, part of Springer Nature 2019
Abstract Background It is unclear whether changes in weight affect subsequent adverse events in patients with type 2 diabetes mellitus (T2DM) already at high risk of cardiovascular disease (CVD). Methods and results This is a post hoc analysis of the Action to Control Cardiovascular Risk in Diabetes (ACCORD) study data to examine the relationship between changes in weight and adverse events. Patients were divided into groups based on changes in body mass index (BMI): stable weight, gain or loss of BMI ≤1.5 kg/m2; moderate weight gain, BMI gain of 1.5–5 kg/m2; pronounced weight gain, BMI gain >5 kg/m2; moderate weight loss, BMI loss of 1.5–5 kg/m2; and pronounced weight loss, BMI loss >5 kg/m2. The primary endpoint of the present study was all-cause mortality. Secondary endpoints were cardiac death, non-fatal myocardial infarction (MI), and non-cardiac mortality. A total of 9372 T2DM patients with a mean follow-up of 8.08 ± 3.00 years were included for analysis. The average change in weight across the entire study population was 1.80 ± 9.00%, representing ~0.448 ± 2.98 kg/m2. Patients with pronounced weight loss had the highest risk of all-cause mortality (hazard ratio (HR) 2.07, 95% confidence interval (CI): 1.68–2.55), followed by patients with pronounced weight gain (HR 1.23, 95% CI: 1.02–1.56); patients with stable weight had the lowest risk. An asymmetric Vshaped relationship was observed between changes in BMI and all-cause mortality and non-cardiac mortality. Although no statistical significance was observed in terms of cardiac death and non-fatal MI, a flat V-shaped relationship may exist. Conclusions Weight was stable in most T2DM patients with high risk of CVD. Weight loss and gain is associated with increased all-cause mortality and non-cardiac mortality. Pronounced weight loss and weight gain is associated with a slight increase in cardiac death and non-fatal MI incidence, which does not reach statistical significance. Keywords Type 2 diabetes mellitus Body mass index Weight change All-cause mortality Cardiac death ●
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Background Type 2 diabetes mellitus (T2DM) is a complex metabolic disorder characterized by increased blood glucose levels, insulin resistance, and progressively insufficient insulin secretion [1]. In 2017, there were 425 million people with diabetes in the world, as estimated by the International Diabetes Federation (IDF) Diabetes Atlas, and there will be
* Shan Gao [email protected] 1
Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
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Department of Geriatrics, The Second Xiangya Hospital, Central South
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