ALB and atrial fibrillation: Van et al. [27] performed a prospective cohort study to assess the relationship between serum ALB levels and new-onset AF (NOAF) in patients admitted to the ICU; similar to our study, they also analyzed data on hospitalized patients; their main result suggested that low serum ALB was related to the occurrence of NOAF; interestingly, they also found a relationship between low serum ALB land the number of onsets of NOAF; these results are also well in alignment with our main finding.