Table 3 Single mediating effect in the association between knowledge of COVID-19 vaccine and vaccination intention.

Mediating Factors	NIE	LCL	HCL	NDE	LCL	HCL	PM^a
Health beliefs of COVID-19 vaccine	0.003	0.001	0.004	0.013	0.007	0.021	16
Awareness of infection with Covid-19	0.001	0.000	0.001	0.016	0.009	0.025	4
Awareness of severity with Covid-19	0.001	0.000	0.002	0.016	0.008	0.025	6
Awareness of Covid-19 vaccine effectiveness	0.003	0.001	0.004	0.012	0.006	0.020	18
Clues to action on COVID-19 vaccination	0.005	0.003	0.007	0.010	0.004	0.017	33
Recommendation from family members	0.002	0.001	0.003	0.016	0.009	0.025	9
Recommendation from people around	0.003	0.002	0.004	0.013	0.006	0.021	19
Recommendation from medical staff	0.003	0.002	0.004	0.012	0.006	0.020	20
Official publicity of the health system	0.003	0.001	0.004	0.014	0.007	0.022	16

NIE natural indirect effects, NDE natural direct effects, PM proportion mediated, LCL lower CI 95, HCL upper CI 95.
^a The formula for the calculation of PM:
\(\:PM=\frac{NIE}{NIE+NDE}\)

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