Description Usage Arguments Value Author(s) References See Also

GFR is estimated with the 4-parameter Modification of Diet in Renal Disease (MDRD) study equation.

1 | ```
MDRD4(creatinine, sex, age, ethnicity, method = "IDMS")
``` |

`creatinine` |
Numeric vector with serum or plasma creatinine values in mg/dl |

`sex` |
Numeric vector with 0 for females and 1 for males |

`age` |
Numeric vector with age in years |

`ethnicity` |
Numeric vector with 0 for non-Black and 1 for Black individuals |

`method` |
Defaults is 'IDMS' for IDMS-traceable creatinine; write 'other' if not IDMS |

A numeric vector with eGFR values in ml/min/1.73 *m^2*.

Cristian Pattaro

Levey AS, *et al*. A more accurate method to estimate glomerular filtration rate from serum creatinine: a new prediction equation. Modification of Diet in Renal Disease Study Group. *Ann Intern Med*. 1999; **130**(6): 461-70.

Levey AS, *et al*. Using standardized serum creatinine values in the modification of diet in renal disease study equation for estimating glomerular filtration rate. *Ann Intern Med.* 2006; **145**: 247-254.

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