Relative renal function by Scintigraphy

Source: R/MethComp-package.R

Measurements of the relative kidney function (=renal function) for 111 patients. The percentage of the total renal function present in the left kidney is determined by one reference method, DMSA (static) and by one of two dynamic methods, DTPA or EC.

Format

A data frame with 222 observations on the following 5 variables:

meth

Measurement method, a factor with levels DMSA, DTPA, EC.

item

Patient identification.

y

Percentage of total kidney function in the left kidney.

age

Age of the patient.

sex

Sex of the patient, a factor with levels F, M.

Source

F. C. Domingues, G. Y. Fujikawa, H. Decker, G. Alonso, J. C. Pereira, P. S. Duarte: Comparison of Relative Renal Function Measured with Either 99mTc-DTPA or 99mTc-EC Dynamic Scintigraphies with that Measured with 99mTc-DMSA Static Scintigraphy. International Braz J Urol Vol. 32 (4): 405-409, 2006

Examples


  data(scint)
  str(scint)
#> 'data.frame':	222 obs. of  5 variables:
#>  $ meth: Factor w/ 3 levels "DMSA","DTPA",..: 2 2 2 2 2 2 2 2 2 2 ...
#>  $ item: int  1 2 3 4 5 6 7 8 9 10 ...
#>  $ y   : int  31 48 49 27 54 51 48 53 63 88 ...
#>  $ age : num  15 65 0.33 53 59 0.5 3.25 5 19 61 ...
#>  $ sex : Factor w/ 2 levels "F","M": 2 2 2 1 1 2 1 2 2 1 ...
  # Make a Bland-Altman plot for each of the possible comparisons:
  par(mfrow=c(1,2),mgp=c(3,1,0)/1.6,mar=c(3,3,1,3))
  BA.plot(scint,comp.levels=c(1,2),ymax=15,digits=1,cex=2)
#> Warning: "comp.levels" is not a graphical parameter
#> Warning: "ymax" is not a graphical parameter
#> Warning: "comp.levels" is not a graphical parameter
#> Warning: "ymax" is not a graphical parameter
#> Warning: "comp.levels" is not a graphical parameter
#> Warning: "ymax" is not a graphical parameter
#> Warning: "comp.levels" is not a graphical parameter
#> Warning: "ymax" is not a graphical parameter
#> Warning: "comp.levels" is not a graphical parameter
#> Warning: "ymax" is not a graphical parameter
#> Warning: "comp.levels" is not a graphical parameter
#> Warning: "ymax" is not a graphical parameter
#> Warning: "comp.levels" is not a graphical parameter
#> Warning: "ymax" is not a graphical parameter
  BA.plot(scint,comp.levels=c(1,3),ymax=15,digits=1,cex=2)
#> Warning: "comp.levels" is not a graphical parameter
#> Warning: "ymax" is not a graphical parameter
#> Warning: "comp.levels" is not a graphical parameter
#> Warning: "ymax" is not a graphical parameter
#> Warning: "comp.levels" is not a graphical parameter
#> Warning: "ymax" is not a graphical parameter
#> Warning: "comp.levels" is not a graphical parameter
#> Warning: "ymax" is not a graphical parameter
#> Warning: "comp.levels" is not a graphical parameter
#> Warning: "ymax" is not a graphical parameter
#> Warning: "comp.levels" is not a graphical parameter
#> Warning: "ymax" is not a graphical parameter
#> Warning: "comp.levels" is not a graphical parameter
#> Warning: "ymax" is not a graphical parameter