Table 4 Absolute bias (mean difference) (bold) and precision (SD around the bias) (italic) between the equations

MDRD

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5.8

16.3

9.8

CKD-EPI

3

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14.2

7.3

CKD-EPI Cys

14.3

11.3

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7.2

CKD-EPI mix

9.6

6.6

4.7

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