Characteristics of respondents
| Patient group | Breast cancer | Colon cancer | ||
| Sample | DCE sample (n=84) | Dutch patients with cancer* | DCE sample (n=145) | Dutch patients with cancer* |
| Demographics | ||||
| Gender (%) | ||||
| Male | 1.2 | 0.6 | 26.2 | 53.2 |
| Female | 90.5 | 99.4 | 60.0 | 46.8 |
| Missing | 8.3 | – | 13.8 | – |
| Age (%) | ||||
| 18–39 years | 10.7 | 4.9 | 9.6 | 1.0 |
| 40–59 years | 69.0 | 37.1 | 31.8 | 11.0 |
| 60 years and older | 19.1 | 58.0 | 55.9 | 88.0 |
| Missing | 1.2 | – | 2.7 | – |
| Socioeconomic status | ||||
| Education level (%) | ||||
| Low | 10.7 | 25.1 | 35.9 | 29.9 |
| Moderate | 38.1 | 42.6 | 31.7 | 39.4 |
| High | 48.8 | 32.3 | 25.5 | 30.7 |
| Missing | 2.4 | – | 6.9 | – |
| Health | ||||
| Subjective health (%) | ||||
| (Very) poor | 4.7 | 11.7 | ||
| Moderate | 39.3 | 35.2 | ||
| (Very) good | 53.6 | 49.0 | ||
| Missing | 2.4 | 4.1 | ||
| Health literacy† | ||||
| Mean score (SD) | 3.5 (0.5) | 3.4 (0.6) | ||
| Inadequate level | 1.4 | 4.0 | ||
| Adequate level | 98.6 | 96.0 | ||
| Stated choice behaviour‡ | ||||
| Preferences respondent (%) | ||||
| Be advised by an expert | 34.5 | 43.5 | ||
| Use a comparative tool | 9.5 | 3.4 | ||
| Choose independently | 54.8 | 26.9 | ||
| Missing | 1.2 | 26.2 | ||
*Source11 19
†Measured only in the main study questionnaire using the validated Dutch translation of Chew's 3-item set of Brief Screening Questions.15
‡A single question in which respondents chose one statement that described their choice behaviour best.
DCE, discrete choice experiment.