Skip to main content

Table 4 Stepwise multiple regression analysis models

From: Estimation of activity of administered 18F-fluorodeoxyglucose by measurement of the dose equivalent rate on the right temporal region of the head

Model Adjusted R-square Unstandardized coefficients Standardized coefficients t value Sig. Collinearity statistics
Regression coefficient Std. error Beta Tolerance VIF
1 (Constant) 0.346 2.181021 0.047049   46.356 0.000   
Weight [kg] −0.013178 0.000793 −0.590 −16.614 0.000 1.000 1.000
2 (Constant) 0.414 2.022751 0.048944   41.327 0.000   
Weight [kg] −0.013117 0.000751 −0.587 −17.465 0.000 1.000 1.000
Elapsed time [s] 0.000713 0.000091 0.262 7.804 0.000 1.000 1.000
3 (Constant) 0.451 2.237429 0.059558   37.567 0.000   
Weight [kg] −0.012969 0.000728 −0.580 −17.823 0.000 0.999 1.001
Elapsed Time [s] 0.000743 0.000089 0.273 8.385 0.000 0.997 1.003
Blood sugar [mg/dl] −0.002040 0.000343 −0.194 −5.951 0.000 0.996 1.004
4 (Constant) 0.458 2.197180 0.060822   36.124 0.000   
Weight [kg] −0.011904 0.000814 −0.533 −14.626 0.000 0.787 1.270
Elapsed time [s] 0.000752 0.000088 0.277 8.542 0.000 0.995 1.005
Blood Sugar [mg/dl] −0.001987 0.000341 −0.189 −5.829 0.000 0.993 1.007
Sex −0.053893 0.018947 −0.104 −2.844 0.005 0.784 1.275
  1. VIF variance inflation factor