Table 3.

Comparison of Strategies A and B for Estimating the AD Locus From the APOE Data Set


Data Set

Strategy

Positiona

95% PI width

Size of cluster 1b
All 30 markers A 0.4366 0.0283 82
B 0.4272 0.0168 95
29 markers without APOE-4 A 0.4269 0.0299 62

B
0.4247
0.0149
106

a The true APOE-4 location is at 425 kb, corresponding to 0.425 cM.

b The number of haplotypes assigned to cluster 1 (the mutation-taking cluster). The total number of disease haplotypes was 372.