Table 1.
Baseline characteristics of the study population (n = 112).
| Characteristic | Value | Percentage |
|---|---|---|
| Median age at study entry (years) | 64 | |
| IQR | 57–71 | |
| Sex | ||
| Female | 42 | 37% |
| Male | 70 | 63% |
| Site of the primary tumor | ||
| Rectum | 50 | 45% |
| Rectosigmoid junction | 2 | 1.8% |
| Sigmoid colon | 25 | 22% |
| Splenic flexure | 4 | 3.6% |
| Transverse colon | 6 | 5.4% |
| Hepatic flexure | 1 | 0.9% |
| Ascending colon | 7 | 6.3% |
| Cecum | 8 | 7.1% |
| Appendix | 1 | 0.9% |
| Two sites | 3 | 2.7% |
| Unknown | 5 | 4.5% |
| Tumor stage at study entry* | ||
| Stage 0 | 3 | 2.7% |
| Stage I | 9 | 8% |
| Stage II | 11 | 9.8% |
| Stage III | 17 | 15% |
| Stage IV | 72 | 64% |
| Progression of tumor at study entry | ||
| Localized | 40 | 36% |
| Distant metastasis | 72 | 64% |
| Anti-VEGF-A treatment from study entry | ||
| Bevacizumab treatment | 49 | 44% |
| Study patient optional bevacizumab treatment | 2 | 1.8% |
Categorical variables are described with absolute numbers and percentages. Age is described as median with IQR.
*
For staging UICC staging was used (stage Ia and Ib are summarized as stage I; stage 0 is defined as ypT0pN0M0, R0 - these are patients with rectum carcinoma, who received presurgical radiotherapy).