Table 2.
The 4 SNP candidates advanced from Step-1 to Step-2 to form SNP-signatures, and the 2 SNP-signatures advanced from Step-2 to Step-3.
| SNPs or SNP-signatures | Genotypes | Patient number (% of patient) | P value | |
|---|---|---|---|---|
| Distribution | Two-year OS | |||
| ERCC2: rs238406 | GG | 30 (33%) | 6 (20%) | 0.005 |
| not GG (GT+TT+0) | 62 (67%) | 31 (50%) | ||
| ERCC1: rs11615 | CC | 13 (14%) | 3 (23%) | 0.07 |
| not CC (CT+TT+0) | 79 (86%) | 34 (43%) | ||
| ERCC1: rs3212948 | GG | 12 (13%) | 3 (25%) | 0.20 |
| not GG (CG+CC+0) | 80 (87%) | 34 (43%) | ||
| XRCC4 rs9293329 | AG | 11 (12%) | 3 (27%) | 0.28 |
| not AG (AA+GG+0) | 81 (88%) | 34 (42%) | ||
| Signature1:rs238406/rs11615 | GG in rs238406 or CC in rs11615 | 38 (41%) | 9 (24%) | 0.006 |
| The others | 54 (59%) | 28 (52%) | ||
| Signature2:rs238406/rs9293329 | GG in rs238406 or AG in rs9293329 | 36 (39%) | 9 (25%) | 0.01 |
| The others | 56 (61%) | 28 (50%) | ||