Fig 2. Flow-chart showing the weighted percentage of elderly individuals according to the presence of decreased GFR, renal damage and comorbidities.

All the weighted percentages were estimated relative to the entire population, resulting in 100% for each line. Comorb: comorbidities. Decreased GFR defined as GFR <60 mL/min/1.73 m²; renal damage defined as presence of proteinuria/hematuria; comorbidities defined as presence of diabetes, hypertension, metabolic syndrome or cardiovascular disease.