Table 1. Detailed patient information for colorectal cancer datasets used in miRNA expression analysis.
| Datasets | TCGA | GSE33125 | GSE18392 | GSE30454 |
| Number of miRNAs available | 2164 | 878 | 510 | 878 |
| Patient nationality | USA | Italy | USA | Spain |
| Platform | Illumina HiSeq miRNA Seq | Illumina Human v2 MicroRNA expression beadchip | Illumina Human v1 MicroRNA expression beadchip | Illumina Human v2 MicroRNA expression beadchip |
| Tissue type | Tumour and normal tissue | Paired tumour and normal tissue | Tumour and healthy tissue | Tumour and healthy tissue |
| Number of samples | ||||
| Tumour | 340 (97%) | 9 (50%) | 116 (80%) | 20 (27%) |
| Normal | 11 (3%) | 9 (50%) | 29 (20%) | 54 (73%) |
| Age (mean ± SD1 years) | ||||
| Tumour sample patients | 65 ± 13 | - | - | 59 ± 16 |
| Normal sample patients | 68 ± 19 | - | - | 64 ± 16 |
| Gender | ||||
| Female | 163 (46%) | - | - | 43 (58%) |
| Male | 185 (53%) | - | - | 31 (42%) |
| Unknown | 3 (1%) | 18 (100%) | 145 (100%) | - |
| Tumour Site | ||||
| Colon | 259 (74%) | 18 (100%) | 145 (100%) | 74 (100%) |
| Rectum | 92 (26%) | - | - | - |
1 – standard deviation.
“-“– inexistent or unspecified.