Table 3.
Loci Showing No Significant Association With Ulcerative Colitis
| UC cases |
Combined controls |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| SNP | CHR | Gene | CD risk allete | RAF | N | RAF controls | N | P values | CD OR | Power (%) | N cases for 80% power |
| rs7927894 | 11q13 | C11orf30 | T | 0.420 | 2447 | 0.392 | 4026 | .0019 | 1.13 | 57 | 3525 |
| rs10188217a | 2p16 | PUS10 | C | 0.538 | 2406 | 0.507 | 2497 | .0024 | 1.14 | 54 | 3634 |
| rs1456893 | 7p12 | A | 0.698 | 2456 | 0.678 | 4005 | .0130 | 1.18 | 85 | 2223 | |
| rs762421 | 21q22 | ICOSLG | G | 0.415 | 2434 | 0.393 | 4045 | .0165 | 1.16 | 81 | 2373 |
| rs1551398 | 8q24 | A | 0.630 | 2465 | 0.609 | 2475 | .0334 | 1.14 | 51 | 3929 | |
| rs7758080 | 6q25 | G | 0.276 | 2342 | 0.257 | 2491 | .0352 | 1.07 | 5 | 17,290 | |
| rs4807569 | 19p13 | C | 0.218 | 2425 | 0.203 | 4047 | .0363 | 1.12 | 28 | 5851 | |
| rs991804 | 17q12 | CCL2, CCL7 | C | 0.739 | 2466 | 0.721 | 2492 | .0428 | 1.09 | 11 | 10,760 |
| rs11175593 | 12q12 | LRRK2, MUC19 | T | 0.019 | 2455 | 0.014 | 4060 | .0541 | 1.49 | 41 | 4578 |
| rs780094 | 2p23 | GCKR | T | 0.399 | 2464 | 0.382 | 4002 | .0590 | 1.10 | 29 | 5891 |
| rs2274910 | 1q23 | ITLN2 | C | 0.691 | 2417 | 0.675 | 2472 | .0790 | 1.17 | 67 | 2985 |
| rs3764147 | 13q14 | G | 0.222 | 2424 | 0.210 | 4017 | .1075 | 1.23 | 95 | 1664 | |
| rs1736135 | 21q21 | T | 0.588 | 2432 | 0.575 | 4032 | .1624 | 1.15 | 74 | 2702 | |
| rs7749278 | 6q27 | CCR6 | T | 0.519 | 2466 | 0.525 | 4046 | .4382 | 1.15 | 76 | 2635 |
| rs17309827 | 6p25 | SLC22A23 | T | 0.631 | 2468 | 0.628 | 4045 | .7070 | 1.07 | 9 | 12,060 |
| rs2872507b | 17q12 | ORMDL3 | A | 0.490 | 643 | 0.484 | 4050 | .7175 | 1.15 | 21 | 1880 |
| rs2476601 | 1p13 | PTPN22 | G | 0.905 | 2471 | 0.903 | 2483 | .7426 | 1.26 | 54 | 3720 |
| rs9286879 | 1q24 | G | 0.243 | 2334 | 0.245 | 2490 | .8002 | 1.15 | 45 | 4100 | |
| rs8098673 | 18q11 | C | 0.324 | 2467 | 0.325 | 2493 | .9300 | 1.06 | 4 | 20,950 | |
NOTE. UC cases include all individuals with UC whose genotyping data passed QC. P values are those from a Cochran-Armitage trend test. Power calculated assuming a multiplicative disease model, a population prevalence of 0.0024,21 and a false-positive rate of 0.0017. Crohn’s disease odds ratios are taken from Barrett et al (2008)12 and represent the estimated allelic risk from the combined case/control and TDT analyses. RAF, risk increasing allele frequency.
SNP selection for the current experiment was carried out using preliminary results from Barrett et al 2008,12 and an alternative SNP to that reported in the final analysis (rs13003464) was selected at this locus (for the purpose of calculating power, we use the OR reported for rs13003464).
Genotyping did not pass QC procedures for 1 of 2 case batches; hence, only 643 cases were available at this SNP.