Ayres Karen L, Powley William M
School of Applied Statistics, University of Reading, P.O. Box 240, Reading, RG6 6FN, UK.
Forensic Sci Int. 2005 May 10;149(2-3):201-3. doi: 10.1016/j.forsciint.2004.06.017.
There has been recent interest in the use of X-chromosomal loci for forensic and relatedness testing casework, with many authors developing new X-linked short tandem repeat (STR) loci suitable for forensic use. Here we present formulae for two key quantities in paternity testing, the average probability of exclusion and the paternity index, which are suitable for X-chromosomal loci in the presence of population substructure.