Table 3.

Direct and indirect effects in the proposed model

Direct path	Coeff.	SE	t-value	p-value
Knowledge→Attitude	.983	.019	49.96	<0.001
Risk perception→Attitude	.084	.026	5.474	<0.001
Attitude→Intention	.698	.030	23.045	<0.001
Subjective norms→Intention	−.035	.019	−1.946	0.052
Perceived behavioral control→Intention	.008	.022	.281	0.778
Past behaviora→Intention	.097	.017	4.372	<0.001
Indirect path	Coeff.	SE	ULCI	LLCI
Knowledge→Attitude→Intention	.389	.020	.429	.350
Risk perception→Attitude→Intention	.011	.005	.023	.0002

Coeff. = coefficient (unstandardized coefficients 0029; SE = standard error; ULCI = upper limit of confidence interval at 95%; LLCI = lower limit of confidence interval at 95%.

The indirect paths were tested using bootstrapping methods (5000 bootstrapping samples).

^aPast behavior relating to influenza vaccination.