Table 4. Association Between QRS Duration and Mortality
Overall (N=2463)Black (N=932)White (N=1531)
Mortality association with continuous QRS duration, HR (95% CI)1.10 (1.04, 1.15)1.16 (1.07, 1.25)1.05 (0.98, 1.12)
Mortality association with prolonged QRS duration, HR (95% CI)1.08 (0.96, 1.22)1.25 (1.01, 1.54)1.02 (0.88, 1.17)
  • Association between 10‐ms increments in QRS duration up to 112 ms and mortality. Hazard ratio (HR) estimates are adjusted for age at catheterization, baseline glomerular filtrate rate, New York Heart Association class, left ventricular ejection fraction, Duke coronary artery severity index,27 heart rate, diabetes mellitus, peripheral vascular disease, chronic obstructive lung disease, coronary artery bypass grafting, diastolic blood pressure, year of electrocardiogram, and body mass index.