ALB and diabetic kidney disease: Authoritative guidelines including the KDIGO 2020 and Chinese Guidelines for the Primary Management of Diabetic Kidney Disease, have been stipulate that urinary albumin-to-creatinine ratio (UACR) ≥ 30 mg/g and estimated glomerular filtration rate (eGFR) < 60 mL/min/1.73 m2 are the core diagnostic criteria.