Table 3.

Conditional logit model of public preferences affected by vaccine attributes.

Attribute	COVID-19 vaccine (N = 746)		Influenza vaccine (N = 763)
	OR	95% CI		OR	95% CI
Effectiveness (base: 75%)			(base:40%)
95%	1.86a	1.72, 2.00	70%	1.37a	1.21, 1.54
			90%	3.65a	3.32, 4.02
Protection duration (base: 6 months)
1 year	1.10a	1.00, 1.21	1 year	1.18a	1.09, 1.27
5 years	1.65b	1.50, 1.80
Sequelae probability (base: high)			(base: middle)
Middle	2.05a	1.85, 2.27	Low	1.86a	1.72, 2.01
Low	4.67a	4.23, 5.16
Country-of-origin (base: imported products)
Domestic products	1.50a	1.39, 1.62		1.24a	1.16, 1.34
Out-of-pocket cost (CNY) (base:0)
150	0.65a	0.60, 0.70		0.85a	0.78, 0.93
300	0.46a	0.41, 0.50		0.42a	0.37, 0.46
Model fit
Log-likelihood	−4242.5836		−4244.3159
Pseudo R2	0.1795		0.1975
AIC	8501.167		8502.632
BIC	8562.051		8556.063
Observations	14,920		15,260

^{a Significance: p < 0.01.}

^{b Significance: p < 0.05.}