Single<unk> s are common in healthy persons. When 24-hour ambulatory monitoring is used, up to 80 percent of apparently healthy people have occasional<unk> s. Rates vary by age with extremely rare for those under the age of 11 and extremely common in those older than 75 years. These differences may be due to rates of high blood pressure and atherosclerosis, which are more easy to find in older persons. In 122,043 United States Air Force flyers and cadet applicants during approximately 48 seconds of ECG 0.78% (952 males) had<unk>  within all age groups, but with increased incidence with increasing age.<unk>  ectopy is more prevalent in men than in women of the same age data from large, population-based studies indicate that the prevalence is less for young white women without heart disease and it’s greater for older African American individuals with hypertension.
Premature ventricular contraction
Premature atrial contraction
Benign early repolarization
Pre-excitation syndrome
Ectopic beat
Ectopic pacemaker
Premature junctional contraction
Drug-induced QT prolongation