Stevens' formula for serum cystatin C, age, and sex

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Description

GFR is estimated with the 2nd formula proposed by Stevens et al. (Am J Kidney Dis 2008), where cystatin C is weighted by sex and age

Usage

1
Stevens.cys2(cystatin, sex, age, ethnicity)

Arguments

cystatin

Numeric vector with serum or plasma cystatin C 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

Value

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

Author(s)

Cristian Pattaro

References

Stevens LA, et al. Estimating GFR using serum cystatin C alone and in combination with serum creatinine: a pooled analysis of 3,418 individuals with CKD. Am J Kidney Dis 2008; 51: 395-406.

See Also

Stevens.cys1, Stevens.creat.cys, CKDEpi.cys