DNA Parentage Testing
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Parentage and Relationship Testing
Parentage testing is used to determine whether and alleged individual is the biological parent of a child. In legal practice parentage testing is extensively used in immigration cases, child support cases and in situations when the birth certificate has to be amended to include or change a parent.
The parentage report contains two pieces of information required for interpretation of the data:
- The Combined Parentage Index (CPI) indicates how many times the alleged parent is more likely to be the biological parent of the child as opposed to another individual. For example, a CPI of 15,000 indicates that the alleged parent is 15,000 times more likely to be the true parent of the child than another individual.
- The Probability of Parentage
is the probability that the alleged parent is the biological parent of the child. This statistic, expressed as a percentage, is an alternative interpretation of the CPI.
