Prevalence of Major and Minor ECG Abnormalities.

Abstract

<p>The percentage of subjects with major and minor ECG abnormalities at baseline (blue) and at year 3 (red). Year 3 percentages include both continued smokers and those who abstained. All p-values for comparisons between baseline and year 3 ECG abnormalities were non-significant (<0.05). <i>ECG = electrocardiogram. *Subjects may have had more than one major and/or minor ECG abnormalities. Each abnormality was tallied separately.</i></p