TABLE 2.
Normalized linkage disequilibrium between DRB1-DQB1 haplotypes and A alleles in AFBAC (n = 399)
| Haplotype |
||||||
|---|---|---|---|---|---|---|
| DRB1 | DQB1 | HLA-A | Dij | D′ | χ 2 | P Value |
| 0101 | 0501 | 0301 | 0.0149 | 0.223 | 10.24 | 0.001 |
| 0301 | 02 | 0101 | 0.0380 | 0.491 | 51.07 | 8.9 × 10−13 |
| 0301 | 02 | 0201 | −0.0152 | − 0.549 | 4.99 | 0.025 |
| 0401 | 0301 | 0201 | 0.0152 | 0.435 | 8.65 | 0.003 |
| 0404 | 0302 | 3101 | 0.0097 | 0.520 | 36.13 | 1.8 × 10−9 |
| 0701 | 02 | 2301 | 0.0038 | 0.262 | 3.97 | 0.046 |
| 0701 | 02 | 2902 | 0.0160 | 0.473 | 30.86 | 2.8 × 10−8 |
| 0701 | 02 | 3001 | 0.0042 | 0.367 | 6.05 | 0.014 |
| 1501 | 0602 | 0301 | 0.0245 | 0.215 | 16.40 | 5.1 × 10−5 |
| 1501 | 0602 | 2501 | 0.0065 | 0.248 | 4.50 | 0.034 |
| 1502 | 0601 | 0101 | 0.0043 | 0.705 | 7.55 | 0.006 |
Only haplotypes that occurred at least three times in the combined data set and exhibited significant linkage disequilibrium are listed.
Abbreviations: AFBAC = affected family-based controls; HLA = human leukocyte antigen.