Fifteen SNPs were genotyped across the 48 kb region containing NPY2R, extending 34 kb on the 5’ end and 4 kb on the 3’ end (Table 2). The average r2 of the 8 HapMap SNPs among these with all of the 83 known HapMap SNPs (MAF≥0.10) in the 48 kb NPY2R region was 0.85; r2 > 0.8 for 81% of the SNPs. Because 7 of the 15 SNPs we genotyped were not in the HapMap database, this is the lower boundary of coverage. NPY2R has weak LD along the 3’ end and stronger LD between SNPs 8–15 on the 5’ end of the gene, as can be seen in Figure 2.