Fig. 1From: Prevalence and associated factors of resting electrocardiogram abnormalities among systemic lupus erythematosus patients without cardiovascular diseaseStudy design and grouping of patients: normal electrocardiogram (ECG), non-ECG-cardiovascular disease (ECG-CVD), ECG-4, and ECG-5. Non-ECG-CVD defined as the presence of any of the following ECG abnormalities: right axis deviation, arrhythmia, sinus tachycardia, sinus bradycardia, atrioventricular blocks, atrial ectopic rhythm, and atrial enlargementBack to article page