Table 2.

Willingness to Share Health Information for Cancer Versus Noncancer Participants by Health Information Use Attributes

Variable	β*	P	95% CI
Conjoint attributes
Use: research	Referent
Use: quality improvement	−0.78	.001	−1.23 to −0.32
Use: marketing	−1.92	< .001	−2.54 to −1.30
User: university hospital	Referent
User: drug company	−0.91	< .001	−1.36 to −0.47
User: public health department	−0.54	.02	−1.01 to −0.08
Sensitivity: medical history	Referent
Sensitivity: medical history plus genetic results	0.53	.006	0.15 to 0.90
Cancer history × conjoint attributes
Yes	0.27	.42	−0.39 to 0.93
Yes × drug company	−0.02	.93	−0.49 to 0.44
Yes × public health department	−0.04	.87	−0.52 to 0.44
Yes × quality improvement	−0.14	.56	−0.62 to 0.33
Yes × marketing	−0.13	.69	−0.77 to 0.51
Yes × genetic results	0.48	.015	0.09 to 0.87

^*Linear regression models using generalized estimating equations to account for correlation of responses from each participant adjusting for race/ethnicity × attribute interactions, age, education, income, living in a metropolitan area, insurance status, usual source of care, cost barriers to care, and health status. Outcome is willingness to share health information on a 1-to-10 scale (1 = not at all willing to share; 10 = very willing to share).