A wide frontal QRS-T angle is associated with a higher incidence of all-cause death.

<p>Meta-analyses were from separated comparisons by two methods of categorizing. (A) Frontal QRS-T angles were divided into “wide angle” and “normal angle”, a meta-analysis of wide angles versus normal ones was conducted. (B) and (C) frontal QRS-T angles were segmented into three groups, <i>i</i>.<i>e</i>. normal, borderline and abnormal angles. (B) Results from comparison between abnormal and normal, (C) results from comparison between borderline and normal. ARIC: the Atherosclerosis in Communities Study; CI: confidence interval; DEFINITE: the Defibrillators in Nonischemic Cardiomyopathy Treatment Evaluation; MADIT II: the Multicenter Automatic Defibrillator Implantation Trial II; NHANES III: the Third National Health and Nutrition Examination Survey; RR: relative risk.