Table 1.

Classification of chronic kidney disease Stages 1-5[8]

Stage	Description	GFR, mL/min/1.73 m2
-	At increased risk	≥ 60
1	Kidney damage with normal or increased GFR	≥ 90
2	Kidney damage with mild decreased GFR	60-89
3	Moderately decreased GFR	30-59
4	Severely decreased GFR	15-29
5	Kidney Failure	< 15 (or dialysis)

GFR: Glomerular filtration rate.