Table 1 Clinicopathological characteristics.
From: Metastatic heterogeneity of the consensus molecular subtypes of colorectal cancer
Primary CRC (n = 315 patientsa) | Metastatic CRC (n = 176 patientsa) | |||
|---|---|---|---|---|
No. of patients | % | No. of patients | % | |
Age at surgery | ||||
Below 65 years | 94 | 30 | 81 | 46 |
65–75 years | 105 | 33 | 76 | 43 |
Above 75 years | 116 | 37 | 19 | 11 |
Gender | ||||
Male | 169 | 54 | 110 | 62 |
Female | 146 | 46 | 66 | 38 |
Primary tumor location | ||||
Left/rectum | 181 | 57 | 133 | 76 |
Right | 126 | 40 | 35 | 20 |
Synchronous | 7 | 2 | 1 | 1 |
Unknown | 1 | 0.3 | 7 | 4 |
Cancer stage at first diagnosis | ||||
I | 65 | 21 | 2 | 1 |
II | 117 | 37 | 15 | 9 |
III | 90 | 29 | 112 | 64 |
IV | 41 | 13 | 31 | 18 |
Unknown | 2 | 1 | 16 | 9 |
Diagnosis of liver metastasis | ||||
Synchronous (within 6 months of initial diagnosis) | – | – | 138 | 78 |
Metachronous | – | – | 38 | 22 |
Systemic oncological treatment prior to sampling of metastases | ||||
Neoadjuvant chemotherapy for this metastatic situation | – | – | 134 | 76 |
Previous chemotherapy only | – | – | 27 | 15 |
No previous systemic treatment (naive) | – | – | 15 | 9 |
