Table 1.
Sample characteristics of the cTTO and DCE samples
| cTTO (n/%) |
DCE (n/%) |
Dutch general population (%) | |
|---|---|---|---|
| Sex | |||
| Female | 113 (57.4) | 491 (51.2) | 50.7% |
| Male | 84 (42.6) | 467 (48.7) | 49.4% |
| Other | 0 (0) | 1 (0.1) | Not reported |
| Age, years | |||
| 18–24 | 21 (10.7) | 98 (10.2) | 10.9% |
| 25–34 | 52 (26.4) | 146 (15.2) | 15.9% |
| 35–44 | 41 (20.8) | 135 (14.1) | 14.7% |
| 45–54 | 38 (19.3) | 168 (17.5) | 17.1% |
| 55–64 | 29 (14.7) | 164 (17.1) | 17.0% |
| 65+ | 16 (8.1) | 248 (25.9) | 24.4% |
| Education | |||
| Low | 12 (6.1) | 75 (7.8) | 29.2% |
| Lower middle | 63 (32.0) | 360 (37.5) | 27.8% |
| Upper middle | 83 (42.1) | 409 (42.7) | 30.7% |
| University | 39 (19.8) | 115 (12.0) | 12.3% |
| Marital status | |||
| Married/registered partners | 113 (57.4) | 506 (52.8) | 45.7% |
| Single | 72 (36.5) | 306 (31.9) | 39.2% |
| Divorced | 9 (4.6) | 82 (8.5) | 9.2% |
| Widowed | 3 (1.5) | 43 (4.5) | 5.8% |
| Prefer not to say | 0 (0) | 22 (2.3) | |
| Having children | |||
| Yes | 105 (53.3) | 545 (56.8) | N/A |
| No | 92 (46.7) | 414 (43.2) | N/A |
| Income | |||
| <€14.000 | 17 (8.6) | 71 (7.4) | N/A |
| €14.000–€27.999 | 22 (11.2) | 182 (19.0) | N/A |
| €28.000–€41.999 | 34 (17.3) | 198 (20.6) | N/A |
| €42.000–€55.999 | 30 (15.2) | 141 (14.7) | N/A |
| €56.000–€69.999 | 23 (11.7) | 98 (10.2) | N/A |
| €70.000–€90.999 | 16 (8.1) | 50 (5.2) | N/A |
| >€91.000 | 13 (6.6) | 46 (4.8) | N/A |
| Refuse to answer | 42 (21.3) | 173 (18.1) | N/A |
Frequencies are reported first, followed by percentages of the total sample in brackets. The last column only reports the percentage of the Dutch population [24]
CTTO composite time trade-off, DCE discrete choice experiment, N/A data not available