ALB and chronic kidney disease: Accordingly, the Kidney Disease: Improving Global Outcomes (KDIGO) clinical practice guidelines stage CKD severity by categories of eGFR (≥60, 45-59, 30-44, and < 30 ml/min/1.73m2) and albuminuria (urine albumin/creatinine ratio [UACR] < 30, 30-299, and ≥ 300 mg/g).