Table 3.

Factors associated with potential participation in a COVID-19 vaccine trial expressed with odds ratio, in multivariable analysis, only variables with a p-value < 0.1 in univariate analysis were integrated in the model. (Ref: reference).

	Univariate analysis	p	Mutivariable analysis	p
Gender
Male	2.057 (1.773–2.388)	<0.001	1.881 (1.532–2.309)	<0.001
Female	Ref		Ref
Age
Under 30 years old	Ref	<0.001	Ref	<0.001
30–49 years old	1.043 (0.868–1.254)		1.518 (1.220–1.888)
50–64 years old	1.797 (1.461–2.211)		1.481 (1.297–1.690)
65–80 years old	1.941 (1.458–2.585)		1.408 (1.229–1.612)
Over 80 years old	0.608 (0.185–1.993)		1.494 (0.881–2.531)
Healthcare workers
No	Ref	0.004	Ref	0.007
Yes	1.223 (1.065–1.405)		1.540 (1.275–1.860)**
Chronic medical conditions
No	Ref	0.32
Yes	1.085 (0.924–1.274)
Fear about COVID-19
No	Ref	0.17	Ref	0.53
Yes	0.895 (0.764–1.048)		0.928 (0784–1.099)
Perceived individual risk
No	Ref	0.006	Ref	0.03
Yes	1.226 (1.061–1.417)		1.235 (1.061–1.439)
Vaccine hesitancy
No	Ref	<0.001	Ref	<0.001
Yes	0.502 (0.433–0.582)		0.512 (0.4411–0.595)