Table 4: Univariable and multivariable proportional odds regression model results for the effect of participant characteristics on willingness-to-pay for CAT systems.

	Univariable			Multivariable
	Odds Ratio	p-value	95% CI	Odds Ratio	p-value	95% CI
Sex
Male	reference
Female	1.28	0.49	0.64, 0.53
Expertise status
1st-year students	reference			reference
6th-year students	0.47	0.07	0.21, 1.06	0.50	0.12	0.21, 1.18
Instructors	0.21	<0.01	0.09, 0.53	0.28	0.01	0.11, 0.74
Treatment history
no	reference
yes	1.70	0.15	0.83, 3.51
Satisfaction with own dental esthetics
no	reference
yes	1.22	0.68	0.48, 3.12
Interest in treatment
no	reference			reference
yes	2.92	0.01	1.36, 6.26	2.15	0.07	0.95, 4.87