Calculate an estimated serum creatinine. Function takes vectorized input as well.
Usage
calc_creat(
sex = NULL,
age = NULL,
weight = NULL,
height = NULL,
adult_method = c("johanssen", "brooks"),
digits = 1
)
Details
For children and adolescents: Uses equations described in Ceriotti et al. Clin Chem. 2008, and Junge W et al. Clin Chim Acta. 2004. For age 15-18, a linear interpolation is used between equations for <15 Johanssen A et al. Ther Drug Monit 2011. For adults: Two methods are available Johanssen et al. Ther Drug Monit 2011. which describes a flat serum creatinine dependent on sex, and Brooks et al (unpublished) which is a linear regression built on the NHANES open-source data and takes into account sex, age, weight, and height. Equation: `lm(SCr~Age+Sex+Weight+Height, data=NHANES)`