Table 5.

Conditional logit estimates for individual’s preferences for colorectal cancer screening test and marginal rates of substitution with respect to cost (N = 1,231)

Attributes	Levels	Coefficient	Cluster robust SE	WTP (AUD)	95% CI (lower)	95% CI (upper)
Sample type	Stool	−0.353	0.023a	−20.950	−25.188	−17.163
	Saliva	0.134	0.022a	7.965	5.399	10.634
	Blood	0.219	0.023a	12.985	9.942	16.419
Test	70%	−1.495	0.024a	−88.768	−98.414	−80.636
performance	80%	0.023	0.011b	1.365	0.126	2.653
	90%	1.472	0.038a	87.403	79.292	97.028
Cost		−0.017	0.001a	–	–	–
Log likelihood		−4,312.525
Observations		11,079

Notes: Conditional logit estimates reported in the table. Cost attribute was included as a continuous variable; all other attributes were effect coded. CIs estimated using bootstrap method (with 10,000 replications).

^aP < 0.01;

^bP < 0.05.

Abbreviations: AUD, Australian dollar; SE, standard error; WTP, willingness to pay.