Association Between Obesity and Microvascular Diseases in Patients With Type 2 Diabetes Mellitus.
Pubmed ID: 34764938
Pubmed Central ID: PMC8576347
Journal: Frontiers in endocrinology
Publication Date: 10/26/2021
Affiliation: Emergency Medicine and Difficult Diseases Institute, Central South University, Changsha, China.
MeSH Terms: Humans, Male, Female, Aged, Risk Factors, Middle Aged, Body Mass Index, Disease Progression, Diabetic Angiopathies, Obesity, Waist Circumference, Renal Insufficiency, Chronic, Diabetes Mellitus, Type 2, China, Diabetic Neuropathies, Diabetic Retinopathy
Authors: Zhang H, Gao S, Xing Z, Long C
Cite As: Gao S, Zhang H, Long C, Xing Z. Association Between Obesity and Microvascular Diseases in Patients With Type 2 Diabetes Mellitus. Front Endocrinol (Lausanne) 2021 Oct 26;12:719515. doi: 10.3389/fendo.2021.719515. eCollection 2021.
This study aimed to evaluate the association between obesity, evaluated by fat mass index (FMI) with the risk of microvascular diseases in patients with type 2 diabetes mellitus (T2DM) and compare the magnitude of associations of FMI, body mass index (BMI), and waist circumference (WC) with the risk of microvascular diseases. We performed a <i>post-hoc</i> analysis of the Action to Control Cardiovascular Risk in Diabetes study. The primary microvascular outcomes of the present study included chronic kidney disease (CKD) progression, retinopathy, and neuropathy. Cox proportional-hazards models were performed to evaluate the association of FMI with microvascular diseases. A discordant analysis was performed to compare the magnitude of associations of FMI, BMI, and WC with the risk of microvascular diseases. Our study included 10,251 T2DM participants with a median of 5 years (interquartile range, 4.2-5.7) of follow-up. A total of 6,184 participants developed CKD progression, 896 participants had retinopathy, and 3,213 participants developed neuropathy (Michigan Neuropathy Screening Instrument, >2.0). After the confounding factors were adjusted for, patients in the highest FMI quartile had a higher risk of CKD progression (HR: 1.26, 95%CI: 1.16-1.36) and neuropathy (HR: 1.93, 95% CI: 1.74-2.15), except for retinopathy (HR: 1.17, 95% CI: 0.96-1.43), than those in the lowest quartile. Discordant analyses found that FMI and WC are better in identifying individuals with obesity-related risk of neuropathy, compared with BMI; neither is better in identifying individuals with obesity-related risk of CKD progression and retinopathy. Obesity is associated with CKD progression and neuropathy in T2DM participants. Further randomized trials are needed to test whether obesity control can improve the outcomes of T2DM participants with CKD or neuropathy. FMI and WC are more useful in identifying obesity-related risk of neuropathy compared with BMI in T2DM patients. Clinical Trial Registration: http://www.clinicaltrials.gov, NCT00000620.