Using a discrete choice experiment to inform the design of programs to promote colon cancer screening for vulnerable populations in North Carolina

Table 2 Discrete choice experiment results: colorectal cancer screening program preferences among vulnerable North Carolinians

Attribute	Level	Mean ^araw utilities	Lower CI	Upper CI	Mean attribute ^bImportance scores (CI)
Testing options	Stool test only	0.60	0.33	0.87	0.17 (0.16 - 0.18)
	Colonoscopy only	−0.42	−0.72	−0.12
	Choice: stool test OR Colonoscopy	−0.61	−0.76	−0.47
	Choice: stool test, Colonoscopy OR CT Colonography	0.43	0.26	0.60
Travel time	No Travel	1.03	0.89	1.17	0.16 (0.15 - 0.17)
	15 minutes	0.92	0.78	1.06
	30 minutes	0.32	0.23	0.41
	45 minutes	−0.96	−1.15	−0.77
	1 hour +	−1.31	−1.46	−1.16
Money paid for screening	$100 Reward	2.50	2.24	2.75	0.33 (0.32 - 0.35)
	$10 Reward	−0.06	−0.23	0.10
	$0	0.30	0.06	0.53
	$25 Cost	1.08	0.87	1.29
	$100 Cost	−0.15	−0.41	0.11
	$1000 Cost	−3.66	−3.96	−3.36
% follow-up care cost you pay	0%	2.79	2.33	3.25	0.34 (0.32 - 0.36)
	5%	1.68	1.40	1.96
	20%	0.42	0.30	0.55
	50%	−1.48	−1.73	−1.23
	100%	−3.42	−3.84	−2.99
None	Given these options, I would not get screened	−3.19	−3.82	−2.56	n/a

Abbreviations: CI Confidence Interval, CT Computerized Tomography.
^aMean raw utilities indicate the relative desirability of each level within an attribute; the higher the number, the more desirable; the lower the number (the more negative), the less desirable.
^bThe relative importance of each attribute, when the stated levels included are employed. The importance scores sum to 1.0 and can be interpreted as proportions.

ISSN: 1472-6963