Ahmad MI, et al. - Among the participants from the Third National Health and Nutrition Examination Survey, researchers assessed the cross-sectional link between marital status and prolonged QT interval (≥450 ms in men, ≥460 ms in women) by using a multivariable logistic regression model. Overall 6,562 participants (mean age 58.6 years, 52% women, 50.1% Non-Hispanic Whites) without a history of cardiovascular disease were included. In a central reading center, digital 12-lead electrocardiogram was used to automatically measure QT. They defined marital status as married and unmarried (never married, divorced /separated or widowed) based on self-reporting. Findings revealed a link between marital status and a prolonged QT interval, particularly among men and younger participants.