Conditional logit model results
| OR | Robust SE | z | P>|z| | 95% CI | |
| Female | 1.217 | 0.032 | 7.440 | 0.000 | 1.156 to 1.282 |
| Age | 1.002 | 0.001 | 2.190 | 0.028 | 1.000 to 1.004 |
| Alzheimer’s | 0.785 | 0.023 | −8.210 | 0.000 | 0.741 to 0.832 |
| Survival probability | 5.521 | 0.630 | 14.970 | 0.000 | 4.414 to 6.905 |
| Alternative 'A' constant | 1.065 | 0.042 | 1.610 | 0.108 | 0.986 to 1.151 |
| Alternative 'B' constant | 1.134 | 0.043 | 3.300 | 0.001 | 1.052 to 1.222 |
| Alternative 'C' constant | (Base alternative) | ||||
| Log pseudo-likelihood | −8382.447 | ||||
| Wald Χ2(4) | 283.54 | ||||
| Prob>Χ2 | 0.000 | ||||
SE adjusted for 2000 clusters in respondent number.
The use of a common option C across choice sets requires the use of alternative specific constants induced by the experimental design.