General characteristics of study participants
| Number of participants | 77 |
| Age (years) | 66.4±8.8 (42–83) |
| Gender | |
| Male | 49 (64%) |
| Female | 28 (36%) |
| Education | |
| <High school | 37 (49%) |
| High school | 25 (33%) |
| University | 14 (18%) |
| Type of malignant tumour | |
| Pancreas | 12 (15%) |
| Colon-rectal | 49 (64%) |
| Lung | 16 (21%) |
Continuous variables are presented as mean±SD with range in parentheses; categorical variables are presented as number and percentage in parentheses.