1. A Final Account of the U:P Ratio
Ray Boston, Glenys Noble, and Martin Sillence

2. Relationship of Urine HEPS to Plasma HEPS
. rreg urine plasma, nolog
Robust regression Number of obs =
F( 1, 10) =
Prob > F =
urinehepsn~l | Coef. Std. Err t P>|t| [95% Conf. Interval]
plasmaheps~l |
_cons |
Urine = Plasma – 16.9
Urine:Plasma ~ 178

3. Fit to mean for all horses of Urine HEPS to Plasma HEPS

4. Mean model and horse-level data for Urine HEPS by Plasma HEPS

5. Mean model and horse-level account of Urine-Plasma HEPS levels

6. Command file for the U:P HEPS Analysis
cd "C:\WORK\PERSONAL\Martin Sillence\Acepromoazine Sep 16 09\U-P Ratio"
use CML049_APZ_HEPS_Toutain_data.dta, clear
keep plasmaheps urine timeh horse
collapse pl ur, by(time)
gen T=int(time*10)
replace T=int(T/10) if T>1
replace T=2.5 if T>2 & T<3
collapse plasma urine, by(T)
rreg urine plasma, nolog
predict p
gr7 p urine plasma if urine<900 & plasma<3.9, c(l.) s(ip) xlabel ylabel
sort horse plasma
gen urinest=178*plasma - 17
gr7 urinest urinehe plasma if urineheps<700 & plasma<4.2, ///
c(l.) s(ip) xlabel ylabel
more
gr7 urinest urinehe plasma if urineheps<700 & plasma<4.2, ///
c(l.) s(ip) xlabel ylabel by(horse)