ALB and atrial fibrillation: In model 1, adjusted for sex, atrial fibrillation, coronary heart disease and heart failure, hemoglobin level, white blood cell count, albumin level, eGFR, TSH level, triglyceride level, total cholesterol level, FT4 level, and TOAST classification, lower FT3 levels were associated with a worse functional outcome at 3 months (OR = 4.63, 95% CI = 2.33–9.02, P < 0.001 for Q1 vs. Q4 and OR = 2.42, 95% CI = 1.35–4.35, P=0.003 for Q2 vs. Q4).