Association between elevated blood glucose level and non-valvular atrial fibrillation: a report from the Guangzhou heart study

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Abstract
Background: To estimate the prevalence of elevated blood glucose level (EBG, including type 2 diabetes mellitus and impaired fasting glucose), and its association with non-valvular atrial fibrillation (NVAF) in Guangzhou, China. Methods: The population-based follow-up Guangzhou Heart Study collected baseline data from July 2015 to August 2017 among 12,013 permanent residents aged > 35 from 4 Guangzhou districts. Two streets (Dadong and Baiyun) in the Yuexiu District, and one street (Xiaoguwei) and two towns (Xinzao and Nancun) in the Panyu District were chosen as representative of urban and rural areas, respectively. Each participant completed a comprehensive questionnaire, and underwent physical examination, blood sample collection for laboratory testing, electrocardiography, and other evaluations. Multivariable logistic regression analyses were used to estimate the independent association between hyperglycemia and NVAF prevalence. Results: The prevalence of EBG in overall study population was 29.9%. Compared with residents without EBG, the odds ratio (OR) for AF among residents with EBG was significantly higher (1.94, 95% confidence interval [CI]: 1.40–2.70, P < 0.001), even after multivariate adjustment for metabolic abnormalities (OR = 1.60, 95% CI: 1.14–2.25, P = 0.007), and driven by women (OR = 1.80, 95% CI: 1.12–2.91, P = 0.016). Conclusions: In Guangzhou, China, prevalence of EBG is high among residents aged > 35 years and associated with a multivariate adjusted increase in prevalence of NVAF overall and in women.
Funding Information
  • Guangzhou Municipal Science and Technology Program key projects (2014Y2-00196, 201508020261)
  • Innovative Research Group Project of the National Natural Science Foundation of China (81870254)

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