Metabolic Dysfunction, Triglyceride-Glucose Index, and Risk of Severe Asthma Exacerbation

被引:12
|
作者
Staggers, Kristen A. [1 ,2 ]
Minard, Charles [1 ,2 ]
Byers, Michelle [3 ]
Helmer, Drew A. [1 ,4 ]
Wu, Tianshi David [1 ,3 ,5 ]
机构
[1] Michael E DeBakey VA Med Ctr, Ctr Innovat Qual Effectiveness & Safety, Houston, TX USA
[2] Baylor Coll Med, Inst Clin & Translat Res, Houston, TX USA
[3] Baylor Coll Med, Sect Pulm Crit Care & Sleep Med, Houston, TX 77030 USA
[4] Baylor Coll Med, Sect Hlth Serv Res, Houston, TX USA
[5] Baylor Coll Med, 7200 Cambridge St, Houston, TX 77030 USA
来源
JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE | 2023年 / 11卷 / 12期
关键词
Epidemiology; Exacerbations; Nonallergic asthma; Metabolism; Risk factors; Veteran; METFORMIN USE; HEALTH; CARE;
D O I
10.1016/j.jaip.2023.09.001
中图分类号
R392 [医学免疫学];
学科分类号
100102 ;
摘要
BACKGROUND: Metabolic conditions may worsen asthma. There is a need to define a composite biomarker of metabolic dysfunction that has relevance to asthma outcomes. OBJECTIVE: To determine the association of the triglyceride-glucose index (TyG), a biomarker of metabolic syndrome and insulin resistance, with risk of severe asthma exacerbation.METHODS: A 5-year retrospective cohort of patients with asthma receiving health care from the US Veterans Health Administration from January 1, 2015, to December 31, 2019, was constructed. Fasting TyG values were extracted. Patients were followed for a severe asthma exacerbation, defined as an asthma-related corticosteroid prescription fill or an emergency encounter or hospitalization for asthma. Adjusted models estimated the relative hazard of exacerbation associated with elevated TyG, accounting for known exacerbation risk factors.RESULTS: A total of 108,219 patients fulfilled study criteria. Over 286,343 person-years of follow-up, 21,467 exacerbations were identified, corresponding to a crude rate of 7.5 exacerbations/100 person-years. In exploratory analysis, we found a threshold effect at a TyG of 8.3, which was defined as elevated. In a fully adjusted model, patients with an elevated TyG had a 6% (95% CI, 3%-10%) higher hazard for severe asthma exacerbation, independent of eosinophil count, smoking, obesity, and asthma treatment intensity.CONCLUSIONS: Elevated TyG is a risk factor for severe asthma exacerbation independent of conventional predictors. Elevated TyG may identify patients who warrant more intensive asthma treatment and who are candidates for future clinical trials of metabolic intervention for purposes of improving asthma morbidity. (c) 2023 American Academy of Allergy, Asthma & Immunology
引用
收藏
页码:3700 / +
页数:8
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