Table II.
Percentage of autosomal SNP pairsa showing no evidence of recombination (D′ = 1), perfect LD (r2 = 1), or where useful LD is observed (r2 ≥ 0.8)
| D′ = 1 | r = 1 | r2 ≥ 0.8 | ||||
|---|---|---|---|---|---|---|
| Inter-SNP distance (kb) | OOA | CEU | OOA | CEU | OOA | CEU |
| ≤10 | 79 | 75 | 20 | 19 | 30 | 29 |
| 10–20 | 60 | 53 | 9 | 7 | 15 | 14 |
| 20–50 | 43 | 34 | 4 | 3 | 9 | 7 |
| 50–100 | 28 | 20 | 1 | 1 | 3 | 2 |
| 100–200 | 20 | 11 | 0 | 0 | 1 | 1 |
| 200–500 | 14 | 7 | 0 | 0 | 0 | 0 |
| 500–1,000 | 12 | 6 | 0 | 0 | 0 | 0 |
| 1,000–2,000 | 11 | 5 | 0 | 0 | 0 | 0 |
| 2,000–5,000 | 10 | 5 | 0 | 0 | 0 | 0 |
| 5,000–10,000 | 8 | 5 | 0 | 0 | 0 | 0 |
OOA, Old Order Amish (n = 60); CEU, US Utah residents from HapMap (n = 60).
a
Restricted to SNPs with minor allele frequency ≥0.05 in both samples (n = 287,476).