Correspondence Response to Letter Regarding Article, “Mortality Associated With Atrial Fibrillation in Patients With Myocardial Infarction: A Systematic Review and Meta-Analysis”

Ramón González-Juanatey all address an important question about the association between the type of atrial fibrillation (AF) and the short- and long-term mortality in patients with myocardial infarction. In our sensitivity analyses, we pooled studies according to the type of AF and their follow-up duration. Because of the lack of space in the original article, we reported that the time frame had relatively little effect on the estimates (data not shown).1 These associations between AF and mortality were significant when analyses were performed for new AF and previous AF subgroups, with the exception of previous AF and short-term mortality, but the number of studies that reported information about previous AF was limited (n3); odds ratios (95 % confidence interval, n studies) of short- and long-term mortality for new AF were 1.45 (1.11–1.89, n9) and 1.33 (1.23–1.45, n7), respectively; odds ratio (95 % confidence interval, n studies) of short- and long-term mortality for previou