I'm interested in HLA imputation results from UK biobank (which was created by HLA*IMP 2 algorithm) and I have registered to have the access of HLA imputation values (field 22182 https://biobank.ctsu.ox.ac.uk/crystal/field.cgi?id=22182 ). However, these values are not annotated and I am unable to interpret results despite a bunch of values just like example data (https://biobank.ctsu.ox.ac.uk/crystal/examples/eg_hla_impute.dat ).
Have anyone analyzed HLA imputation values from UK biobank before? How do you interpret the results (and if possible, how to compare HLA allele frequency in interested phenotype, is chi-square with FDR adjustment enough). Any suggestion is appreciated.