The “Variables in the Equation” table shows the output resulting from including all of the candidate predictor variables in the equation. Notice that the Race variable, which was originally coded as 1=White, 2=African American, 3=Hispanic and 4=0ther has been changed (by the SPSS logistic procedure) into three (4 - 1) indicator variables called Race(1), Race(2), and Race (3). These three variables each enter the equation with their own coefficient and p-value and there is an overall p-value given for Race.
The significance of each variable is measured using a Wald statistic. Using p=0.10 as a cutoff criterion for not including variables in the equation, it can be seen that Gender (p=0.142) and Race (p=0.419) do not appear to be important predictor variables. Age is marginal (p=0.104), but we’ll leave it in for the time being. Rerun the analysis again after taking out Gender and Race as predictor variables. The analysis is rerun without these “unimportant” variables, yields the following output: