Atrial fibrillation (AF) is the most frequently cardiac arrhythmia in developed countries [1] and several studies have been described that in both developed and developing countries, the age-adjusted incidence and prevalence of AF are lower in women [1]. The detection of AF is associated with an important morbidity and mortality rate, with an increase in admissions and health costs [1–6]. AF is a leading risk factor for stroke and related with one-third of all ischemic cerebrovascular events [3,7].