MDRD or CKD-EPI study equations for estimating prevalence of stage 3 CKD in epidemiological studies: which difference? Is this difference relevant?

Table 2 Anthropometrical and biological description of the population (n = 1992).

N = 1992	Mean	SD	Range
Age (years)	62	8	45-84
Weight (Kg)	75	16	37-156
Height (cm)	167	9	140-196
BMI (Kg/m²)	27	5	15-60
Creatinine (mg/dL)	0.86	0.2	0,4-2,7
MDRD study (mL/min/1.73 m²)	82	18	18-166
CKD-EPI study (mL/min/1.73 m²)	84	16	18-123

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