Intelligent Systems Developed for the Early Detection of Chronic Kidney Disease

Table 1

Classification of CKD defined by KDOQI.

Stage	State of kidney function	Classification; by severity by; GFR
1	Kidney damage with normal or increasing in GFR	GFR ≥ 90
2	Kidney damage with mild decreasing in GFR	GFR of 60–89
3	Moderate with decreasing in GFR	GFR of 30–59
4	Severe with decreasing in GFR	GFR of 15–29
5	Kidney failure	GFR < 15 (or dialysis)