Table 4 Findings of multivariate analysis on determinants of the Tdap vaccine uptake

Vaccination recommendation by a healthcare provider

7.26

3.25

16.26

<.0001

Intention to be vaccinated against Tdap during pregnancy

6.12

3.16

11.87

<.0001

Subjective norm (i.e., perceived support for vaccination by significant others)

3.81

1.90

7.61

0.0002

Recruitment site

FMG

3.61

1.47

8.86

0.0051

Obstetric clinic

2.97

1.12

7.89

0.0288

Perceived behavioural control (i.e., perceived ease of being vaccinated in pregnancy)

2.32

1.23

4.37

0.0091

Anticipated regret (i.e., anticipated feeling of sorrow if something negative happens while unvaccinated)

2.13

1.13

4.00

0.0191