{"title":"Prevalence and risk factors of prolonged QTc interval among Chinese patients with type 2 diabetes.","authors":"Xiang Li, Hui Ren, Zhang-rong Xu, Yan-jun Liu, Xiao-pin Yang, Jian-qin Liu","doi":"10.1155/2012/234084","DOIUrl":null,"url":null,"abstract":"<p><strong>Objectives: </strong>The aim of this study was to evaluate the prevalence and the risk factors of prolonged QTc interval among Chinese patients with type 2 diabetes.</p><p><strong>Methods: </strong>The retrospective study included 3156 outpatients from the Diabetes Centre, the 306th Hospital of PLA, during the period from September 2003 to June 2010. QT interval was measured manually in the 12-lead conventional electrocardiogram. The QT interval corrected for heart rate (QTc) was calculated using Bazett's formula. Additional demographic and laboratory data were also collected. Potential risk factors of prolonged QTc interval were assessed using multivariable regression.</p><p><strong>Results: </strong>The prevalence of prolonged QTc interval among Chinese patients with type 2 diabetes was 30.1%. Height (OR 0.156, 95% CI 0.032~0.748), waist circumference (OR 1.025, 95% CI 1.010~1.040), diastolic blood pressure (OR 1.016, 95% CI 1.007~1.026), postprandial glucose (OR 1.040, 95% CI 1.022~1.059), fasting insulin (OR 1.014, 95% CI 1.003~1.025), and presence of microalbuminuria (OR 1.266, 95% CI 1.033~1.551) were significant risk factors.</p><p><strong>Conclusions: </strong>The prevalence of prolonged QTc interval among Chinese patients with type 2 diabetes is high. Risk factors for prolongation of QTc interval were low height, high waist circumference, increasing diastolic blood pressure levels, high postprandial glucose levels, high fasting insulin levels, and presence of microalbuminuria.</p>","PeriodicalId":12109,"journal":{"name":"Experimental Diabetes Research","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2012/234084","citationCount":"39","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Experimental Diabetes Research","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1155/2012/234084","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2012/12/25 0:00:00","PubModel":"Epub","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 39
Abstract
Objectives: The aim of this study was to evaluate the prevalence and the risk factors of prolonged QTc interval among Chinese patients with type 2 diabetes.
Methods: The retrospective study included 3156 outpatients from the Diabetes Centre, the 306th Hospital of PLA, during the period from September 2003 to June 2010. QT interval was measured manually in the 12-lead conventional electrocardiogram. The QT interval corrected for heart rate (QTc) was calculated using Bazett's formula. Additional demographic and laboratory data were also collected. Potential risk factors of prolonged QTc interval were assessed using multivariable regression.
Results: The prevalence of prolonged QTc interval among Chinese patients with type 2 diabetes was 30.1%. Height (OR 0.156, 95% CI 0.032~0.748), waist circumference (OR 1.025, 95% CI 1.010~1.040), diastolic blood pressure (OR 1.016, 95% CI 1.007~1.026), postprandial glucose (OR 1.040, 95% CI 1.022~1.059), fasting insulin (OR 1.014, 95% CI 1.003~1.025), and presence of microalbuminuria (OR 1.266, 95% CI 1.033~1.551) were significant risk factors.
Conclusions: The prevalence of prolonged QTc interval among Chinese patients with type 2 diabetes is high. Risk factors for prolongation of QTc interval were low height, high waist circumference, increasing diastolic blood pressure levels, high postprandial glucose levels, high fasting insulin levels, and presence of microalbuminuria.
目的:本研究的目的是评估中国2型糖尿病患者QTc间期延长的患病率及其危险因素。方法:对2003年9月至2010年6月解放军第306医院糖尿病中心门诊就诊的3156例患者进行回顾性研究。12导联常规心电图人工测量QT间期。经心率校正后的QT间期(QTc)采用Bazett公式计算。还收集了额外的人口统计和实验室数据。采用多变量回归评估QTc间期延长的潜在危险因素。结果:中国2型糖尿病患者QTc间期延长的患病率为30.1%。身高(OR 0.156, 95% CI 0.032~0.748)、腰围(OR 1.025, 95% CI 1.010~1.040)、舒张压(OR 1.016, 95% CI 1.007~1.026)、餐后血糖(OR 1.040, 95% CI 1.022~1.059)、空腹胰岛素(OR 1.014, 95% CI 1.003~1.025)、微量白蛋白尿(OR 1.266, 95% CI 1.033~1.551)为显著危险因素。结论:中国2型糖尿病患者QTc间期延长的患病率较高。QTc间期延长的危险因素有:身高低、腰围高、舒张压升高、餐后血糖水平高、空腹胰岛素水平高、微量白蛋白尿。