P-wave axis is associated with all-cause mortality in diabetes: The ACCORD trial.

Journal Article (Clinical Trial;Journal Article)

Abnormal P-wave axis (PWA) has emerged as a novel marker of risk for both cardiovascular disease (CVD) and all-cause mortality (ACM) in the general population, though this relationship has not been adequately explored among those with type 2 diabetes (DM2). We aimed to explore the association between abnormal PWA and ACM among a large, well-phenotyped group of participants with DM2 from the Action to Control Cardiovascular Risk in Diabetes (ACCORD) trial. This analysis included 8899 ACCORD participants with available PWA data on baseline electrocardiogram. Cox proportional hazards models were used to examine the association between PWA and ACM in models adjusted for demographics, ACCORD trial treatment assignment, and potential confounders. PWA was modeled as either normal (0° -75°) or abnormal (<0° or >75°). Over 44,000 person-years of follow up, there were 609 deaths. Participants with abnormal PWA had increased risk of ACM (HR 1.61, 95% CI 1.25-2.08). After multivariable adjustment, the association remained significant (HR 1.33, 95% CI 1.03-1.72). This relationship was similar in subgroups stratified by age, race, sex, and history of CVD. Among ACCORD trial participants, abnormal PWA was associated with an increased risk of mortality. Abnormal PWA may have added value beyond traditional risk factors in prediction models.

Full Text

Duke Authors

Cited Authors

  • Ehrhardt-Humbert, L; Upadhya, B; Bhave, PD; Soliman, EZ; Beaty, EH; Yeboah, J; Singleton, MJ

Published Date

  • 2020

Published In

Volume / Issue

  • 60 /

Start / End Page

  • 184 - 187

PubMed ID

  • 32413693

Electronic International Standard Serial Number (EISSN)

  • 1532-8430

Digital Object Identifier (DOI)

  • 10.1016/j.jelectrocard.2020.04.023


  • eng

Conference Location

  • United States