Hello, I am reading paper A tutorial on conducting genome‐wide association studies: Quality control and statistical analysis, this is link. At table1 it says:
Can indicate sample mix‐ups. If many subjects have this discrepancy, the data should be checked carefully. Males should have an X chromosome homozygosity estimate >0.8 and females should have a value <0.2.
My question is why thresholds
0.2, any data/paper supports? Thanks a lot!