CRP and atrial fibrillation: Based on the data in Tables 1, 2, 3, and 4, the significant variables were selected associated with different AF status as follows: age; hypertension; heart failure; CAD; CVD; prior beta-blocker use; CRP; Troponin-I; LA dimension; LVEF; SOFA scores; APACHE II scores; neurological, circulation, or hepatic failure; renal dysfunction; dopamine use; and norepinephrine use.