TABLE 3.

Two-step hierarchical regression analysis (Model 1 and 2) and separate regression containing significant predictors (Model 3) of intention to get vaccinated.

	B	95% CI	SEB	β	R2	ΔR2
Model 1					0.66**	0.66**
Age	0.01	[0.0, 0.01]	0.00	0.05*
Female gender	–0.10	[−0.24, 0.05]	0.07	–0.03
Attitude	0.66	[0.57, 0.74]	0.04	0.43**
Social norm Friends	0.18	[0.09, 0.27]	0.05	0.13**
Social norm Family	0.33	[0.24, 0.42]	0.05	0.25**
Perceived control (capability)	0.14	[0.09, 0.19]	0.03	0.12**
Perceived control (autonomy)	–0.06	[−0.11, -0.01]	0.03	–0.04
Model 2					0.70**	0.05**
Age	0.00	[−0.0, 0.01]	0.00	0.02
Female gender	–0.13	[−0.27, 0.01]	0.07	–0.03
Attitude	0.47	[0.38, 0.55]	0.04	0.30**
Social norm Friends	0.11	[0.03, 0.20]	0.04	0.08
Social norm Family	0.23	[0.15, 0.32]	0.04	0.17**
Perceived control (capability)	0.09	[0.04, 0.14]	0.03	0.08**
Perceived control (autonomy)	–0.03	[−0.08, 0.02]	0.03	–0.02
Relative susceptibility	0.06	[−0.00, 0.12]	0.03	0.04
Relative seriousness	0.03	[−0.02, 0.09]	0.03	0.03
Anticipated regret vaccination	–0.16	[−0.22, -0.11]	0.03	−0.14**
Anticipated regret no vaccination	0.26	[0.20, 0.32]	0.03	0.22**
Model 3					0.69**
Attitude	0.48	[0.40, 0.57]	0.04	0.31**
Social norm Family	0.31	[0.24, 0.38]	0.04	0.23**
Perceived control (capability)	0.11	[0.06, 0.16]	0.03	0.09**
Net anticipated regret (no vaccination – vaccination)	0.22	[0.18, 0.25]	0.02	0.32**

*p < 0.01, **p < 0.001.