### How to Read Your Results

In your test report, turn to Page 2. You will see a chart displaying the DNA profiles for each person tested. The data displayed in the DNA profile chart may look something like this:

DNA Locus | Child | Alleged Father | Paternity Index |

D8S1179 | 13,14 | 13 | 1.51 |

D21S11 | 30,32.2 | 30,32.2 | 2.88 |

At the bottom of the table, you will see a "Combined Paternity Index, and Probability of Paternity". These are the values you want to focus on.

### Combined Paternity Index

The **Combined Paternity Index (CPI)** value is calculated by multiplying the calculated paternity index values together. The CPI value is a measure of the *overall strength of the genetic evidence*. It represents how many times more likely it is that the tested alleged father is the true biological father compared to a randomly selected man in the population.

### Probability of Paternity

The probability of paternity is calculated from the CPI, and it is generally considered to be the final result of a paternity test. A CPI value of 0 corresponds to a probability of paternity of 0%. A CPI value that is greater than 1000 corresponds to a probability of paternity of greater than 99.99%.

### So what does this mean?

In a DNA Paternity Test, your test report will indicate one of two possible outcomes:

**If the alleged father IS NOT the true biological father, **your report is expected to state:

PROBABILITY OF PATERNITY: 0

**If the alleged father IS the true biological father**, your report is expected to state:

PROBABILITY OF PATERNITY: >99.99%