Table 1. Overview of the samples included in the study.
| FF_array_ID | FFPE_array_ID | RIN (FF) | PCR fragments (FFPE) | IHC | IHC/CISH | ||||||||||||
| pair_ID | FF_ID | FFPE_ID | a | b | c | a | b | c | a | b | a | b | ER | PgR | HER2 | MP | grade |
| 1 | 24720 | 2790 | 1 | 2 | 87 | 3 | 4 | 92 | 9.8 | 9.5 | 4 | 4 | 100% | 0% | 3 | High | 3 |
| 2 | 24926 | 4021 | 5 | 6 | - | 9 | 10 | - | 8.2 | 9.3 | 4 | 4 | 0% | 0% | 3 | High | 3 |
| 3 | 25287 | 5887 | 11 | 12 | - | 13 | 14 | - | 8.8 | 9 | 4 | 4 | 100% | 10% | 1 | Low | 1 |
| 4 | 25217 | 5536 | 15 | 16 | - | 17 | 18 | - | 8.5 | 8.8 | 4 | 4 | 80% | 10% | 3 | High | 2 |
| 5 | 25194 | 5371 | 19 | 20 | - | 21 | 22 | - | 8.9 | 8.3 | 4 | 4 | 100% | 100% | 0 | Low | 2 |
| 6 | 25418 | 6635 | 23 | 24 | 88 | 25 | 26 | 93 | 9.2 | 7.9 | 4 | 4 | 80% | 80% | 0 | Low | 1 |
| 7 | 25972 | 9001 | 27 | 28 | 89 | 29 | 30 | 94 | 8.1 | 9 | 4 | 4 | 100% | 100% | 0 | High | 2 |
| 8 | 24386 | 1053 | 31 | 32 | - | 33 | 34 | - | 9.3 | 8.5 | 4 | 4 | 70% | NA | 1 | High | 3 |
| 9 | 24428 | 1221 | 35 | 36 | - | 37 | 38 | - | 9.6 | 9.3 | 4 | 4 | 100% | 0% | 3 | High | 2 |
| 10 | 24788 | 3264 | 41 | 42 | - | 43 | 44 | - | 8.9 | 8.9 | 4 | 4 | 0% | 0% | 1 | High | 3 |
| 11 | 24807 | 3428 | 45 | 46 | 90 | 47 | 48 | 95 | 9.2 | 9.1 | 4 | 4 | 75% | 40% | 0 | High | 3 |
| 12 | 25043 | 4732 | 49 | 50 | - | 51 | 52 | - | 7.4 | 8.3 | 4 | 4 | 1% | 0% | 3 | High | 3 |
| 13 | 25172 | 5290 | 53 | 54 | - | 55 | 56 | - | 8.6 | 8.2 | 4 | 4 | 100% | 100% | 3 | High | 2 |
| 14 | 25576 | 7296 | 57 | 58 | - | 59 | 60 | - | 7.9 | 8.2 | 4 | 4 | 100% | 100% | 0 | Low | 2 |
| 15 | 25468 | 6825 | 61 | 62 | - | 63 | 64 | - | 8.2 | 9.5 | 4 | 4 | 0% | 0% | 3 | High | 3 |
| 16 | 24266 | 0173 | 65 | 66 | - | 67 | 68 | - | 8.6 | 9.4 | 4 | 4 | 100% | 80% | 0 | Low | 1 |
| 17 | 24389 | 1070 | 69 | 70 | 91 | 73 | 74 | 96 | 8.9 | 9.5 | 4 | 4 | 100% | 50% | 1 | High | 2 |
| 18 | 25173 | 5292 | 75 | 76 | - | 77 | 78 | - | 7.9 | 7.6 | 4 | 4 | 100% | 100% | 1 | Low | 2 |
| 19 | 25298 | 5975 | 79 | 80 | - | 81 | 82 | - | 7.9 | 8.2 | 4 | 4 | 80% | 0% | 3 | High | 2 |
| 20 | 25575 | 7299 | 83 | 84 | - | 85 | 86 | - | 8 | 9.2 | 4 | 4 | 100% | 60% | 1 | Low | 1 |
| 21 | 25831 | 6473 | not hybridized | 4.9 | 5.9 | 4 | 4 | 0% | 0% | 3 | NA | 3 | |||||
FF = Fresh Frozen, FFPE = Formalin Fixed Paraffin Embedded; pair_ID = number of the pair FF-FFPE; FF (FFPE)_ID = FF (FFPE) sample identifier; FF (FFPE)_array_ID = sample identifier on the array; a, b = biological replicates, c = technical replicate; RIN = RNA Integrity Number; ER = Estrogen Receptor; PR = Progesteron Receptor; HER2 = Human Epidermal growth factor Receptor 2; IHC = Immunohystochemistry; CISH = Chromogenic In Situ Hybridization; MP = MammaPrint, High = high risk, Low = low risk; grade = histological grade; NA Not Available.