Calculating egfr using creatinine

[Muhammad Rashid]

Dear users

Can you please someone share their experience of using the stata module written by phil clayton to calculate egfr from creatinine. https://ideas.repec.org/c/boc/bocode/s457731.html
I have installed this module but cannot understand the syntax I should be using to generate the egfr using creatinine, gender and age information. Can someone please help ?

Thanks

[Joseph Coveney]

I've had no prior experience with it, but its syntax seems pretty straightforward. Here's an example that illustrates its use with a formula that requires only age and sex. Begin at the "Begin here" comment; the first part of the code just downloads the module from SSC and creates a fictional toy dataset for use in illustration.

.ÿ
.ÿversionÿ16.0

.ÿ
.ÿclearÿ*

.ÿ
.ÿsetÿseedÿ`=strreverse("1529598")'

.ÿ
.ÿlocalÿSSCÿhttp://fmwww.bc.edu/repec/bocode/e/

.ÿ
.ÿforeachÿfileÿinÿadoÿsthlpÿ{
ÿÿ2.ÿÿÿÿÿÿÿÿÿcopyÿ"`SSC'egfr.`file'"ÿ"`c(pwd)'/egfr.`file'",ÿreplace
ÿÿ3.ÿ}

.ÿ
.ÿquietlyÿsetÿobsÿ5

.ÿ
.ÿgenerateÿbyteÿageÿ=ÿruniformint(21,ÿ65)

.ÿlabelÿvariableÿageÿ"Patient'sÿageÿ(y)"

.ÿ
.ÿgenerateÿdoubleÿcreÿ=ÿruniform(0.5,ÿ2.5)

.ÿlabelÿvariableÿcreÿ"Serumÿcreatinineÿlevelÿ(mg%)"

.ÿformatÿcreÿ%03.1f

.ÿ
.ÿgenerateÿbyteÿsexÿ=ÿruniformint(0,ÿ1)

.ÿlabelÿdefineÿSexesÿ0ÿMÿ1ÿF

.ÿlabelÿvaluesÿsexÿSexes

.ÿlabelÿvariableÿsexÿ"Patient'sÿsexÿ(1ÿ==ÿis-female)"

.ÿ
.ÿ*
.ÿ*ÿBeginÿhere
.ÿ*
.ÿegfrÿ,ÿformula(mayo)ÿcreatinine(cre)ÿfemale(sex)ÿage(age)ÿusÿgenerate(gfr)

eGFRÿcalculatedÿforÿ5ÿobservations.ÿValuesÿrangeÿfromÿ25ÿtoÿ116ÿmL/min.

.ÿformatÿgfrÿ%3.0f

.ÿ
.ÿlist,ÿnoobs

ÿÿ+-----------------------+
ÿÿ|ÿageÿÿÿcreÿÿÿsexÿÿÿgfrÿ|
ÿÿ|-----------------------|
ÿÿ|ÿÿ47ÿÿÿ1.2ÿÿÿÿÿMÿÿÿÿ86ÿ|
ÿÿ|ÿÿ53ÿÿÿ2.3ÿÿÿÿÿFÿÿÿÿ25ÿ|
ÿÿ|ÿÿ29ÿÿÿ1.1ÿÿÿÿÿMÿÿÿ116ÿ|
ÿÿ|ÿÿ56ÿÿÿ1.8ÿÿÿÿÿFÿÿÿÿ37ÿ|
ÿÿ|ÿÿ24ÿÿÿ1.5ÿÿÿÿÿFÿÿÿÿ60ÿ|
ÿÿ+-----------------------+

.ÿ
.ÿexit

endÿofÿdo-file


.

[Muhammad Rashid]

Thank you Joseph,, this seems to work very well.