PMID- 38419951 OWN - NLM STAT- MEDLINE DCOM- 20240301 LR - 20240306 IS - 1664-2392 (Print) IS - 1664-2392 (Electronic) IS - 1664-2392 (Linking) VI - 15 DP - 2024 TI - Glycemic variability evaluated by HbA1c rather than fasting plasma glucose is associated with adverse cardiovascular events. PG - 1323571 LID - 10.3389/fendo.2024.1323571 [doi] LID - 1323571 AB - BACKGROUND: Although studies have shown that glycemic variability is positively associated with an increased risk of cardiovascular disease, few studies have compared hemoglobin A1c (HbA1c) and fasting plasma glucose (FPG) variability with adverse cardiovascular events in patients with type 2 diabetes mellitus (T2DM). METHODS: This was a post hoc analysis of the Action to Control Cardiovascular Risk in Diabetes (ACCORD) study. Cox proportional hazards models were used to explore the relationship between HbA1c or FPG variability and the incidence of major adverse cardiovascular events (MACEs). RESULTS: In total, 9,547 patients with T2DM were enrolled in this study. During the median 4.6 +/- 1.5 years follow-up period, 907 patients developed MACEs. The risk of MACEs increased in the HbA1c variability group in each higher quartile of HbA1c variability (P < 0.01). Compared with those in the first quartile of HbA1c variability, patients in the fourth quartile had a hazard ratio of 1.37 (Model 2, 95% confidence interval: 1.13-1.67) for MACEs. Higher FPG variability was not associated with a higher risk of MACEs in patients with T2DM (P for trend=0.28). A U-shaped relationship was observed between HbA1c and FPG variability, and MACEs. Glucose control therapy modified the relationship between HbA1c and MACEs; participants with higher HbA1c variability receiving intensive glucose control were more likely to develop MACEs (P for interaction <0.01). CONCLUSION: In adults with T2DM, the relationship between glycemic variability evaluated using HbA1c and FPG was U-shaped, and an increase in HbA1c variability rather than FPG variability was significantly associated with MACEs. The relationship between HbA1c variability and MACEs was affected by the glucose control strategy, and a higher HbA1c variability was more strongly associated with MACEs in patients receiving an intensive glucose control strategy. CI - Copyright (c) 2024 Sheng, Yang, Chai, Zhou, Sun and Xing. FAU - Sheng, Lijuan AU - Sheng L AD - Clinical Nursing Teaching and Research Section, Second Xiangya Hospital, Central South University, Changsha, China. FAU - Yang, Guifang AU - Yang G AD - Department of Emergency Medicine, Second Xiangya Hospital, Central South University, Changsha, China. AD - Trauma Center, Second Xiangya Hospital, Central South University, Changsha, China. AD - Emergency Medicine and Difficult Diseases Institute, Second Xiangya Hospital, Central South University, Changsha, China. FAU - Chai, Xiangping AU - Chai X AD - Department of Emergency Medicine, Second Xiangya Hospital, Central South University, Changsha, China. AD - Trauma Center, Second Xiangya Hospital, Central South University, Changsha, China. AD - Emergency Medicine and Difficult Diseases Institute, Second Xiangya Hospital, Central South University, Changsha, China. FAU - Zhou, Yang AU - Zhou Y AD - Department of Emergency Medicine, Second Xiangya Hospital, Central South University, Changsha, China. AD - Trauma Center, Second Xiangya Hospital, Central South University, Changsha, China. AD - Emergency Medicine and Difficult Diseases Institute, Second Xiangya Hospital, Central South University, Changsha, China. FAU - Sun, Xin AU - Sun X AD - College of nursing, Changsha Medical University, Changsha, China. FAU - Xing, Zhenhua AU - Xing Z AD - Department of Emergency Medicine, Second Xiangya Hospital, Central South University, Changsha, China. AD - Trauma Center, Second Xiangya Hospital, Central South University, Changsha, China. AD - Emergency Medicine and Difficult Diseases Institute, Second Xiangya Hospital, Central South University, Changsha, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20240214 PL - Switzerland TA - Front Endocrinol (Lausanne) JT - Frontiers in endocrinology JID - 101555782 RN - 0 (Glycated Hemoglobin) RN - 0 (Blood Glucose) SB - IM MH - Adult MH - Humans MH - Glycated Hemoglobin MH - *Diabetes Mellitus, Type 2/epidemiology MH - Blood Glucose MH - Fasting MH - *Cardiovascular Diseases/etiology/complications PMC - PMC10899469 OTO - NOTNLM OT - HbA1c variability OT - MACEs OT - fasting plasma glucose variability OT - glycemic variability OT - type 2 diabetes mellitus COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2024/02/29 06:42 MHDA- 2024/03/01 06:44 PMCR- 2024/01/01 CRDT- 2024/02/29 04:02 PHST- 2023/10/18 00:00 [received] PHST- 2024/01/24 00:00 [accepted] PHST- 2024/03/01 06:44 [medline] PHST- 2024/02/29 06:42 [pubmed] PHST- 2024/02/29 04:02 [entrez] PHST- 2024/01/01 00:00 [pmc-release] AID - 10.3389/fendo.2024.1323571 [doi] PST - epublish SO - Front Endocrinol (Lausanne). 2024 Feb 14;15:1323571. doi: 10.3389/fendo.2024.1323571. eCollection 2024.