GLM for factors coded as [-1;0;1]

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GLM for factors coded as [-1;0;1]

cristiano1974
Dear Listers,
 I'd like to perform a ANOVA on this dataset: I have 4 factors coded as [-1;0;1]

runs    A’    B’    C’    D’    outcome
1         -1    -1    -1    -1    1075
2         -1    0    0    0    633
3         -1    1    1    1    406
4         0    -1    0    1    860
5         0    0    1    -1    561
6         0    1    -1    0    868
7         1    -1    1    0    669
8         1    0    -1    1    1138
9         1    1    0    -1    749
10      -1    -1    -1    -1    1052
11     -1    -1    -1    -1    1037

Is it correct to use the factors A;B,C,D as covariates in the Univariate GLM procedure, or I'm wrong?

Thanks in advance for your support.

Cristiano.