Table 1.

Classification of chronic kidney disease.

Stage	Description	Glomerular filtration rate (GFR)(ml/min per 1.73 m [2])
1	Kidney damage with normal GFR	>90
2	Kidney damage with mild decreased GFR	60–89
3	Moderately decreased GFR	30–59
4	Severely decreased GFR	15–20
5	Kidney failure	<15(or dialysis)