The data set from Kosrae consisted of a genome scan for schizophrenia [Wijsman et al., 2003]. A sample of 36 cases and 76 unrelated controls from the island was available with the genealogy known for the case group. Even though the pedigree information of the cases was available, we suspected there might be additional relatedness among cases and cryptic relatedness among controls since the data were collected from a relatively small population. The genome scan consisted of a standard panel of 379 microsatellite markers. As in the analysis of the Guam data, estimation of relatedness and association tests were performed. Also, using the known genealogy, the corrected χ2 test with pedigree-based assigned kinship coefficients was performed.
