Table 2.

Multivariable regression model second survey

Characteristics	Coefficient	Confidence interval (95%)		p-value
Age	− 0.533	− 1.469	0.402	0.229
Degree
Graduate	Ref
Undergraduate	− 2.274	− 9.374	4.825	0.487
Years of work	0.901	− 0.240	2.041	0.108
Knowledge score	0.563	− 0.702	1.829	0.340
Adherence to preventive measures	0.124	− 0.838	1.085	0.778
Flu vaccination—yes	6.954	3.074		0.003
Risk perception	− 1.005	− 2.596	10.835	0.187
Unhealthy days index	0.284	0.078	0.490	0.012