Categorisation of chronic kidney disease by age, estimated glomerular filtration rate and albumin:creatinine ratio
| Category 1: Patients aged less than 75 years with an eGFR <60 mL/min/1.73 m2 | 44% |
| Category 2: Patients aged older than 75 years with an eGFR <45 mL/min/1.73 m2 | 23% |
| Category 3: Patients aged older than 75 years with eGFR >45 mL/min/1.73 m2 and ACR >10 mg/mmol | 8% |
| Category 4: Patients older than 75 years eGFR >45 mL/min/1.73 m2 and ACR <10 mg/mmol | 25% |
ACR = albumin creatinine ratio; eGFR = estimated glomerular filtration rate.