Table 3.

Multiple logistic regression of factors associated with willingness to accept the heterologous booster vaccination.

Variables	β	S.E.	Wald χ2	P-value	OR (95% CI)
Type of investigation
Face to face	0.672	0.178	14.283	<0.001	2.0 (1.4–2.8)
Telephone					Reference
Age (y)
18–59	0.433	0.193	5.025	0.025	1.5 (1.1–2.3)
≥60					Reference
Education level
Senior high school or below	0.374	0.208	3.234	0.072	1.5 (1.0–2.2)
College or above					Reference
County
Huoshan	0.657	0.398	2.723	0.099	1.9 (0.9–4.2)
Jinan	1.098	0.386	8.077	0.004	3.0 (1.4–6.4)
Shucheng	1.876	0.355	27.866	<0.001	6.5 (3.3–13.1)
Huoqiu	1.651	0.381	18.743	<0.001	5.2 (2.5–11)
Jinzhai	1.089	0.371	8.633	0.003	3.0 (1.4–6.1)
Yuan	1.835	0.405	20.56	<0.001	6.3 (2.8–13.9)
Yeji					Reference
Residence
Urban	0.265	0.212	1.56	0.212	1.3 (0.9–2.0)
Rural					Reference
Positive attitude toward COVID-19 vaccination
Yes	1.339	0.412	10.542	0.001	3.8 (1.7–8.6)
No					Reference
History of side effects following inactivated COVID-19 vaccines
Yes	−0.892	0.453	3.883	0.049	0.4 (0.2–1.0)
No					Reference
Confidence in the safety of COVID-19 vaccines
Yes	1.881	0.225	69.609	<0.001	6.6 (4.2–10.2)
No					Reference
Familiar with heterologous booster vaccination
Yes	0.624	0.257	5.883	0.015	1.9 (1.1–3.1)
Heard about it	0.784	0.179	19.225	<0.001	2.2 (1.5–3.1)
No					Reference
Taking initiative in collecting booster shots information
Yes	0.761	0.175	18.833	<0.001	2.1 (1.5–3.0)
No					Reference
Accepting recommendations from HCWs
Yes	3.514	0.215	267.074	<0.001	33.6 (22.0–51.2)
No