Based on standardized mean difference shown in Figure 4, the key features of patients in cluster 2, compared to those of patients in cluster 1, included older age, higher comorbidity burden, especially more history of hypertension and diabetes mellitus, more AKI, more hospital admissions primarily due to kidney disease, and lower eGFR and serum albumin but higher potassium and phosphorus. The gene discussed is ALB; the disease is diabetes mellitus.