Table 5.

Four classes in the COVID-19 vaccine group.

COVID-19 vaccine (N = 746)
Class1	1		2		3		4
Share	9.52%		35.22%		25.66%		29.60%
Attribute	OR	95% CI	OR	95% CI	OR	95% CI	OR	95% CI
Effectiveness (base: 75%)
95%	2.21a	1.87, 2.62	1.60a	1.58, 1.62	1.03a	1.02, 1.03	1.19a	1.08, 1.32
Protection duration (base: 6 months)
1 year	NS		1.29a	1.26, 1.33	0.98b	0.97, 0.99	0.90b	0.83, 0.98
5 years	1.99a	1.32, 3.04	4.07a	3.92, 4.23	NS		NS
Sequelae probability (base: high)
Middle	2.21a	1.68, 2.90	NS		1.02a	1.00, 1.02	1.15a	1.04, 1.28
Low	4.26a	3.05, 5.94	5.21a	4.99, 5.43	NS		1.36a	1.16, 1.61
Country-of-origin (base: imported)
Domestic	0.54a	0.45, 0.66	NS		NS		0.93a	0.90, 0.97
Out-of-pocket cost (CNY) (base:0)
150	NS		0.39a	0.38, 0.40	1.04a	1.03, 1.06	0.92a	0.88, 0.97
300	NS		0.16a	0.16, 0.17	1.03a	1.01, 1.05	0.88a	0.81, 0.96

Class membership	Coef.	95% CI	Coef.	95% CI	Coef.	95% CI	Baseline
Age	NS		−0.02a	−0.03, −0.01	NS
Married	NS		0.54a	0.20, 0.89	0.63a	0.28, 0.97
Education	−1.70a	−2.35, −1.04	NS		NS
Unhealthy	NS		−0.33a	−0.51, −0.16	−0.35a	−0.54, −0.16
Urban regions	NS		−0.28c	−0.58, 0.02	−0.84a	−1.15, −0.53
Income (CNY)	0.51a	0.24, 0.78	−0.19a	−0.29, −0.09	NS
Vaccinated acquaintances
Doctors	−1.65b	−3.00, −0.30	0.63a	0.24, 1.02	0.69a	0.28, 1.10
Leaders	2.11a	0.66, 3.57	NS		−0.54b	−1.02, 0.10
COVID-19 infection
Low probability	0.43a	0.05, 0.81	NS		NS
Mild harm	NS		−0.49a	−0.65, −0.32	NS
Vaccine sequelae
Low probability	NS		−0.13b	−0.25, −0.01	NS
Mild	NS		0.25a	0.13, 0.38	0.14b	0.00, 0.28
Observations	14,920

Only significant variables were displayed.

Class¹: Class in the COVID-19 vaccine group.

^{a Significance: p < 0.01.}

^{b Significance: p < 0.05.}

^{c Significance: p < 0.1.}