ALB and Abnormal renal physiology: A risk score was calculated for each patient using a formula derived from the expression levels of the six variables weighted by their regression coefficients: Risk score = −3.02492 + 0.04100 × age (years) + 0.48031 × (diabetes = 1) + 0.69499 × (previous renal dysfunction = 1) + 0.00851 × creatinine (μmol/L) + 0.00026 × B-type natriuretic peptide (pg/ml) −0.056 × albumin (g/L).