Table 3

Pairwise analysis at D3S1279, D4S412, D4S430, and FGF3

Marker		Subgroup		Paternal sharing			Maternal sharing				Combined sharing				Mat v pat
Marker		Subgroup		IBD1	IBD0		%IBD	χ²			p	IBD1			IBD0	%IBD	χ²	p	IBD1	IBD0	%IBD	χ²	p	χ²	p
D3S1279	ALL	129	118	52	0.5		126	112	53	0.8			257	232	53	1.3
	FF	35	22	61	3.0	0.083	37	12	76	12.8	3.5 × 10⁻⁴		72	34	68	3.2	0.74		2.4	0.12
	MM	40	37	52	0.1		31	37	46	0.5			72	75	49	0.1
	MF	54	59	48	0.2		58	62	48	0.1			113	122	48	0.3
	E	43	41	51	0.0		41	46	47	0.3			86	89	49	0.0
	L	35	33	52	0.1		34	29	54	0.4			69	62	53	0.4
	D	51	44	54	0.5		51	37	58	2.2			102	81	56	2.4
D4S412	ALL	105	100	51	0.1		123	97	56	3.1			238	207	54	2.2
	FF	23	24	49	0.0		25	22	53	0.2			50	48	51	0.0
	MM	32	28	53	0.3		32	31	51	0.0			66	61	52	0.2
	MF	49	47	51	0.0		65	44	60	4.0			120	97	55	2.3
	E	38	33	54	0.4		47	42	53	0.3			91	81	53	0.6
	L	29	21	58	1.3	0.25	40	16	71	10.3	0.0013		71	39	64	9.3	0.023		2.1	0.15
	D	38	46	45	0.8		36	39	48	0.1			76	87	47	0.7
D4S430	ALL	87	134	39	10.0	0.0016	98	132	43	5.0	0.025		192	273	41	14.1	1.7 × 10⁻⁴
	FF	22	33	40	2.2		23	31	43	1.2			46	65	41	3.2
	MM	27	39	41	2.2		24	47	34	7.4			52	87	37	8.8
	MF	37	62	37	6.3		51	52	49	0.0			93	119	44	3.2
	E	40	47	46	0.6		43	42	51	0.0			24	33	48	0.2
	L	24	33	42	1.4		25	36	41	2.0			51	71	42	3.3
	D	23	54	30	12.5	4.1 × 10⁻⁴	30	54	36	6.9	0.0086		56	111	34	18.1	2.1 × 10⁻⁵		0.62	0.43
FGF3	ALL	131	104	56	3.1		129	111	54	1.3			265	220	55	4.2
	FF	27	25	52	0.1		29	29	50	0.0			57	55	51	0.0
	MM	31	37	46	0.5		34	38	47	0.2			66	76	46	0.7
	MF	72	42	63	7.9	0.0049	65	44	60	4.1	0.043		140	89	61	11.4	7.3 × 10⁻⁴
	E	54	30	64	6.9		43	47	48	0.2			99	79	56	2.2
	L	31	35	47	0.2		37	28	57	1.2			71	66	52	0.2
	D	46	39	54	0.6		49	36	58	2.0			95	75	56	2.3

IBD1 = number of sib pairs sharing 1 allele identical by descent. IBD0 = number of sib pairs sharing 0 alleles identical by descent. %IBD = proportion of alleles shared identical by descent. χ² and p value assuming 1df. Matv pat = 2 × 2 contingency table for difference in sharing of parental origin of alleles.