Posts tagged ‘Avuncular DNA Testing’

What do all these numbers mean on my DNA Test results?

When you look at a report for DNA Testing there are always a lot of numbers.  These numbers throughout the report indicate several things, and it can be overwhelming to figure out which ones are important.  As far as understanding your results only two of these numbers will really help you understand the result of your test.

First is the percentage listed as the ‘Probability of Paternity.’  This percentage is generally one of two numbers in a DNA Paternity Test 0% and 99% or higher.  This number is probably the most helpful when trying to interpret your DNA Testing results.

In other tests like Siblingship or Avuncular DNA Tests you will not have a percentage in your results.  Here the conclusion is based upon an index number which is calculated based on the DNA markers shared by the individuals being tested.  This number in this type of testing is anywhere between 0 and basically infinity. When the number is between 0 and 1 it is considered more likely that two people are unrelated.  If it is between 1 and 75 the relationship is considered to be favored but still the result is considered inconclusive.  If above 75 it is more likely that the individuals are related than not.  In this type of testing a result is rarely considered fully conclusive.

In a DNA Paternity Test or a Grandparent DNA test with both grandparents you will also have an index number.  This number is generally either 0 or 150 and above.  If this number is 0 it is considered an exclusion.  If the number is above 150 it means that the alleged father is that many times more likely to be the alleged father than an untested, unrelated, man of the same ethnicity.

Tomorrow I will tell you a little about all the other numbers on your report and how they relate to your results.  I know that the reports can be a little difficult to read.  I hope that my explanation has shed a little light on the matter, if not tell me and I can break it down a little farther.


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