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. Author manuscript; available in PMC: 2015 Mar 1.
Published in final edited form as: Br J Haematol. 2013 Dec 12;164(5):729–739. doi: 10.1111/bjh.12690

Table I. Definition of chronic kidney disease stage in this study (based on the National Kidney Foundation, Kidney Disease Outcomes Quality Initiatives Guidelines)(National Kidney Foundation 2002).

Stage Albuminuria Glomerular Filtration Rate
Stage 1 ≥ 30 mg/g creatinine ≥ 90 ml/min/1.73 m2
Stage 2 ≥ 30 mg/g creatinine 60 – 89 ml/min/1.73 m2
Stage 3 or greater < 60 ml/min/1.73 m2