KDIGO Publications

KDIGO International Controversies Conference

KDIGO International Controversies Conference: Definition and Classification of Chronic Kidney Disease in Adults Worldwide
Amsterdam, November 2004 (Position Statement)

In 2002, the NKF-K/DOQI, using an evidence-based approach through its Kidney Disease Outcomes Quality Initiative (K/DOQI), developed and published for the first time a system for the definition and classification of stages of chronic kidney disease (CKD). The four core elements of this system are:

• A definition of CKD based on reduction of GFR in combination with signs of kidney damage.
• A staging system of the severity of CKD based on the degree of reduction of GFR.
• The proposal that both the definition and staging should be based on an estimate of GFR derived from the measurement of serum creatinine by the use of appropriate prediction equations.
• The proposal that proteinuria be quantitated using the ratio of albumin / protein to creatinine concentrations in spot urine samples.

The goals of this conference were to 1) provide a clear understanding to both the nephrology and non-nephrology communities of the evidence base fir the definition and classification recommended by KDOQI, (2) develop global consensus for the adoption of a simple definition and classification system, and (3) identify a collaborative research agenda and plan that would improve the evidence base and facilitate implementation of the definition and classification of CKD.

Click here to see the published position statement from the conference
Click here for the complete agenda from the conference
Click here to see the abstracts submitted by conference participants
Click here to see the results from the survey on the definition and classification of CKD