Table 4. Parameter estimates for the two- and three-allele models of genetically influenced XCI choice for the Utah and Denmark data sets.

Model Parameters	τ	P1	P2	P3	δ12	δ13	δ23	P-value (AD)
Two-allele Utah	0.31	0.11	0.89		0.398			0.066
Two-allele Denmark	0.31	0.21	0.79		0.388			0.039
Three-allele Utah	0.17	0.43	0.29	0.286	0.179	0.000	0.405	0.174
Three-allele Denmark	0.18	0.39	0.32	0.29	0.176	0.257	0.420	0.656

P-values for models with no significant lack of fit are set in bold.