Table 3

 Linkage homogeneity testing by excess allele sharing at 2p11–q12

Chromosome“Chr2_linked” (n = 84)“Chr2_unlinked” (n = 115)χ2* (empirical p value)
2 statistic for homogeneity of linkage among the two subgroups. Likelihood for the combined sample in table 2.
†Proportion of alleles shared IBD by affected siblings.
IBD, identical by descent.
Chromosome 5
MLS (%IBD)0.81 (58)2.19 (61)8.98 (0.046)
Location (cM) (marker)133 (D5S471)78 (D5S647)
Chromosome 6
MLS (%IBD)0.69 (57)0.86 (57)0.64 (>0.50)
Location (cM) (marker)92 (D6S460)76 (D6S257)
Chromosome 7
MLS (%IBD)0.72 (58)1.01 (57)1.01 (>0.50)
Location (cM) (marker)133 (D7S486)5 (D7S531)
Chromosome 11
MLS (%IBD†)2.08 (61)1.07 (59)7.14 (0.13)
Location (cM) (marker)77 (D11S937)127 (D11S4151)
Chromosome 19
MLS (%IBD)0.46 (56)0.60 (56)0.05 (>0.50)
Location (cM) (marker)73 (D19S902)73 (D19S902)