Table 1. Stages of CKD according to KDOQI guideline.

Stage	Description	GFR ml/min/1.73m2
1	Kidney damage with normal Or increased GFR	≥ 90
2	Kidney damage with mild decrease GFR	60-89
3	Moderate decrease GFR	30-59
4	Severe decrease GFR	15-29
5	Kidney failure	< 15