SNPs Minimum Missing Genotype by Trait p -Value SNPs with less than this p-value from the test for different proportions of missing genotypes in cases and controls (as defined by the Binary Trait Variable ) are excluded from the output data set. Enter 0 to include all SNPs regardless of p -value. Enter 1 to prevent the Missing Genotype by Trait Summary process from running. To Specify a P-Value: Check the Perform Missing Genotype by Trait Analysis box on the General tab to activate this field. Type a value into the text box.