. 2011 Dec 1;127(1):11–23. doi: 10.1007/s00414-011-0647-5

Table 3.

Four examples (A–D) of calculated ratios of observed PH to expected PH for the donor alleles at a given locus

A	Genotype 30-pg contributor 1			9		10			C	Genotype 300-pg contributor	14		16
	Genotype 30-pg contributor 2	8						11		Genotype 30-pg contributor			16		19
	Expected contribution	1	:	1	:	1	:	1		Expected contribution	10	:	11	:	1
	Observed PH (rfu)	55		82		55		84		Observed PH (rfu)	1,204		1,290		105
	Sum of PHs	276								Sum of PHs	2,599
	Expected PH^a	69		69		69		69		Expected PH^b	1,181		1,300		118
	Ratio observed PH/expected PH	0.80		1.19		0.80		1.22		Ratio observed PH/expected PH	1.02		0.99		0.89
B	Genotype 300-pg contributor			9		10			D	Genotype 150-pg contributor			22
	Genotype 30-pg contributor	8						11		Genotype 30-pg contributor	20				23
	Expected contribution	1	:	10	:	10	:	1		Expected contribution	1	:	10	:	1
	Observed PH (rfu)	199		1,098		1,213		195		Observed PH (rfu)	nd		1,193		65
	Sum of PHs	2,705								Sum of PHs	1,258
	Expected PH^b	123		1,230		1,230		123		Expected PH^c	105		1,048		105
	Ratio observed PH/expected PH	1.62		0.89		0.99		1.59		Ratio observed PH/expected PH	0.00		1.14		0.62

nd allele not detected using a detection threshold of 50 rfu

^a(Sum of PHs/4) × expected contribution

^b(Sum of PHs/22) × expected contribution

^c(Sum of PHs/12) × expected contribution