ALB and cardiac arrhythmia: When comparing baseline characteristics of survivors and non-survivors in patients with and without HF, it was found that non-survivors had a higher percentage of AF, COPD, CCI score, cardiac arrhythmia, poor HGS, and high Rockwood frailty index, as well as lower serum LDL, albumin, and eGFR, but higher serum creatinine.