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Corrigendum to Heart Rate Variability and Risk of All-Cause Death and Cardiovascular Events in Patients With Cardiovascular Disease: A Meta-Analysis of Cohort Studies

The estimate for risk of sudden death associated with high frequency (HF) heart rate variability (HRV) extracted from the study by Anastasiou-Nana et al. (2005) was misclassified as an estimate for all-cause death. We reanalyzed the data for risk of cardiovascular events and risk of all-cause death based on the revised classification of outcomes (i.e., endpoints). The authors would like to replace the original Figures 2 and 3 with the new Figures 2 and 3 below. The pooled hazard ratio (HR) for all-cause death was 2.27 and that for cardiovascular events was 1.41 according to the current analysis.