Genotype to code as 2 for the Trend Test

Select the genotype to be coded numerically as the value 2 for the trend test.

Note: The other homozygous genotype is coded as 0. The heterozygous genotype for both selections is always coded as 1.

Note: If genotypes are already coded numerically, it is assumed that 2 represents homozygous for the minor allele and 0 represents homozygous for the major allele. Thus, selecting Homozygous for Major Allele will reverse the current coding.

To Specify the Genotype Coding

8

Make sure that the Calculate trend odds ratios box is checked.

8

Select the desired genotype coding format by clicking within the appropriate radio button.