Fu S, et al. - Researchers ascertained if N-terminal pro-brain natriuretic peptide (NT-proBNP) levels significantly improved the evaluation of all-cause mortality in older Chinese patients with atrial fibrillation (AF), the most common arrhythmia, when added to CHADS₂ and CHA₂DS₂VASc scores. In order to determine the variables independently associated with all-cause mortality, Cox regression analysis was applied. Data reported that the median age was 85 years and all-cause mortality was 24.2%. In this study involving 219 older patients with AF, NT-proBNP levels were an independent biomarker related to increased all-cause mortality in older Chinese AF patients and had an independent and additional ability to assess their all-cause mortality compared to CHADS₂ and CHA₂DS₂VASc.