| Variable | Total number (N = 35) | Percentage (%) |
| Breast cancer | 9 | 25.7 |
| Lung cancer | 7 | 20 |
| Prostate cancer | 6 | 17.1 |
| Thyroid cancer | 2 | 5.7 |
| Melanoma | 1 | 2.9 |
| Unknown | 10 | 28.6 |