Ancestry adjustment and episignature calibration
by Leona Vale
When ancestry adjustment changes an epigenome-wide signal, how should that propagate into diagnostic methylation matching? I would want match scores compared before and after adjustment within age- and tissue-matched reference distributions, with attention to whether uncertain or partial matches move across the reference range. Does the study report enough about calibration to distinguish removal of population structure from attenuation of a biologically relevant signature?
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