Table 7 The mediating effects of knowledge about vaccines on the relationship between TPB constructs and vaccine hesitancy.

From: Using the integrative model of behavioural prediction to understand COVID-19 vaccine hesitancy behaviour

Path

β

Stdβ

c

95% CI

[LCI, UCI]

t

p

(a) Mediation effect of knowledge about vaccine on the relationship between negative attitude towards vaccine and vaccine hesitancy

Total effect

0.124

0.374

0.042

0.299, 0.476

11.8689

0.012

Direct effect

0.120

0.362

0.042

0.280, 0.458

11.6342

0.014

Indirect effect

0.004

0.011

0.008

− 0.001, 0.032

–

0.048

(b) Mediation effect of knowledge about vaccine on the relationship between subjective norms and vaccine hesitancy

Total effect

− 0.020

− 0.022

0.009

− 0.044, − 0.008

− 2.4611

0.004

Direct effect

0.000

0.000

0.000

0.000, 0.000

–

–

Indirect effect

− 0.020

− 0.022

0.009

− 0.044, − 0.008

–

0.004

(c) Mediation effect of knowledge about vaccine on the relationship between perceived behavioural control and vaccine hesitancy

Total effect

− 0.264

− 0.138

0.043

− 0.216, − 0.038

− 3.1239

0.005

Direct effect

− 0.204

− 0.106

0.043

− 0.178, − 0.005

− 2.2515

0.006

Indirect effect

− 0.060

− 0.031

0.009

− 0.054, − 0.017

–

0.004

(d) Mediation effect of knowledge about vaccine on the relationship between anticipated regret and vaccine hesitancy

Total effect

− 0.157

− 0.115

0.026

− 0.168, − 0.067

− 3.9033

0.008

Direct effect

− 0.127

− 0.092

0.026

− 0.146, − 0.043

− 3.1454

0.008

Indirect effect

− 0.031

− 0.022

0.007

− 0.037, − 0.009

–

0.016

  1. All parameters obtained from the AMOS output with the TPB dimensions: Negative attitude towards vaccine, subjective norms, perceived behavioural control and anticipated regret; β—unstandardised beta co-efficient; Stdβ—standardised beta co-efficient; SE—standard error; 95% CI—95% confidence interval with lower bounds and upper bounds [LCI, UCI]; t—t value, p—shows the significant level.
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