ALB and respiratory failure: Analysis was adjusted for age, gender, race, hypertension, diabetes mellitus, body mass index, congestive heart failure, atrial fibrillation, respiratory failure, ventricular fibrillation, cardiogenic shock, albumin, white blood cell, lymphocytes, neutrophils, blood urea nitrogen, calcium, serum creatinine, glucose, red cell distribution width, C-reactive protein, cardiotonic, furosemide, and sequential organ failure assessment