Comparison of the patient-level factors in the whole Bretagne region and within the two municipality clusters with significantly higher and lower risk of emergency first dialysis (Table 1 and Table 2) showed that the patients’ clinical (primary renal disease, comorbidities and psychiatric disorders, BMI, smoking status, albumin rate, and hemoglobin rate) and socio-demographic characteristics (age, sex, and activity) were comparable in the two clusters. The gene discussed is ALB; the disease is kidney disorder.