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| Understanding Results |
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A parentage (paternity/maternity) test report includes a table listing the different DNA markers tested and the alleles (forms of genes) found (the DNA profile). Also reported are the Probability of Parentage and the Combined Parentage Index (CPI) values. The DNA profiles include the raw data on which the statistical calculations are based. To understand the result, clients will want to focus on the Probability of Parentage:
A POP of 99.9% to 99.9999+% indicates that the tested alleged parent IS the biological parent of the child(ren) in question.
A POP of 0.00% indicates that the tested alleged parent IS NOT the biological parent of the child(ren) in question.
It may also be helpful to understand that the CPI may be interpreted as a 1 in (CPI value) certainty that the alleged parent is, in fact, the biological parent of the child(ren) in question.
| Interpretation of Familial Test Results |
| Probability of Relationship > 99% = Very Probable |
| Probability of Relationship > 95%-99% = Probable |
| Probability of Relationship > 80%-95% = Indication |
| Probability of Relationship > 20%-80% = Uncertain |
| Probability of Relationship > 5%-20% = Doubtful |
| Probability of Relationship > 0%-5% = Improbable |
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| See Information below for sample reports. |
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