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Exclusion probability (PE)

Definition

The proportion of unrelated men in the relevant population who would be excluded as fathers of a child with the observed maternal and child phenotypes. Computed for each system separately, then combined as a cumulative figure across all tested systems.

Related terms

Exclusion
The categorical conclusion that one or more examined features are clearly inconsistent in a way that cannot be explained by projection angle,...
False exclusion
An incorrect serological finding that excludes a true biological parent. Causes include chimerism (two cell populations in one individual), rare antigen variants,...
Non-exclusion (inclusion)
A finding that the alleged parent's blood group profile is compatible with parentage. Non-exclusion does not prove parentage: it means only that...
Paternity index (PI)
A likelihood ratio that compares the probability of the observed serological profile if the alleged father is the biological father to the...
Phenotype
The observable serological result for a blood group system, determined by which antigens are present on the red cell surface. Two people...

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