Table 1.

Categorisation of chronic kidney disease according to estimated glomerular filtration rate [4]

Chronic kidney disease group	eGFR (ml/min per 1.73 m2)	Terms
Group 1	≥ 90	Normal or high
Group 2	60–89	Mildly decreased
Group 3a	45–59	Mildly to moderately decreased
Group 3b	30–44	Moderately to severely decreased
Group 4	15–29	Severely decreased
Group 5	< 15	Kidney failure

eGFR estimated glomerular filtration rate